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Mexico City’s women water harvesters help make up for drought

MEXICO CITY — Gliding above her neighborhood in a cable car on a recent morning, Sonia Estefanía Palacios Díaz scanned a sea of blue and black water tanks, tubes and cables looking for rain harvesting systems.

“There’s one!” she said, pointing out a black tank hooked up to a smaller blue unit with connecting tubes snaking up to the roof where water is collected.

“I’m always looking for different rainwater harvesting systems,” she said, smiling. “I’m also always looking for places to install one.”

Driven by prolonged drought and inconsistent public water delivery, many Mexico City residents are turning to rainwater. Pioneering company Isla Urbana, which does both nonprofit and for-profit work, has installed more than 40,000 rain catchment systems across Mexico since the company was founded 15 years ago. And Mexico City’s government has invested in the installation of 70,000 systems since 2019, still a drop in the bucket for the sprawling metropolis of around 9 million.

But there’s little education and limited resources to maintain the systems after installation, leading the systems to fall into disuse or for residents to sell off the parts.

Enter Palacios Díaz and a group of other women who make up the cooperative Pixcatl, which means harvest of water in the Indigenous Nahuatl language.

In lower-income areas like Iztapalapa — Mexico City’s most populous borough — the group tries to keep systems functioning while also educating residents on how to maintain them. That includes brainstorming their own designs and providing residents with low-cost options for additional materials.

Palacios Díaz has lived with water scarcity in Iztapalapa as far back as she can remember. “Here, people will get in line starting at 3 in the morning to get water (from distribution trucks) up until 2 in the afternoon,” she said from her mother’s home. “There was a time in which we went for more than a month without a regular supply of water.”

Earlier this year, the reservoirs that supply the capital were perilously low. Authorities reduced the amount of water being released and neighborhoods not accustomed to water scarcity faced a new reality.

Entering the rainy season, most of Mexico was in moderate to severe drought. Mexico’s reservoirs are beginning to approach half their capacity, but they haven’t filled by much, according to recent reports by the National Water Commission.

The country depends on the rains — which normally peter out in October — to fill the reservoirs, but the drought has taken them so low that that might take years.

That’s encouraged many Mexicans like Palacios Díaz to turn to rainwater harvesting.

At the height of the pandemic, she taught classes on urban farming and water harvesting at a local community space. It wasn’t until her students said they wanted to learn how to install and understand their own systems that she seriously considered taking a government course. After enrolling in a training program in 2022 to become an installer, she met other young women from the city interested in water harvesting systems and they formed the cooperative.

Near the skirt of a volcano on the fringes of Iztapalapa, Lizbeth Esther Pineda Castro, another member of the cooperative, and Palacios Díaz adjusted a ladder to reach the roof of a small house. The two-story home inherited by Sara Huitzil Morales and her niece sits in Iztapalapa’s Buenavista neighborhood.

Huitzil’s mother had qualified for a free water harvesting system from Mexico City’s government in 2021. After the installation, Huitzil requested Pixcatl’s maintenance since she wasn’t sure how to take care of the system.

Sporting their navy polos with the Pixcatl logo, Pineda and Palacios Díaz cleared debris off the roof so the system only collects fresh rain.

“We also add a little bit of soap and chlorine to clean the pipes,” said Palacios Díaz as she swept the liquid down a connecting tube that leads to the harvesting system.

Downstairs, they joined the other members of the cooperative in a courtyard to look at the giant 2,500-liter water tank, enough to serve Huitzil’s needs for several months when filled. The colossal container stood nearly as tall as Palacios Díaz. Another cooperative member cleared a filter of leaves and dirt.

Last, Palacios Díaz plopped in a couple of chlorine pills to clean and disinfect the water. The frequency of the entire maintenance process depends on several factors, including how much water is in the tank, how much has been used, and whether it has rained.

Huitzil said before the harvesting system, she endured water shortages and rationing. The publicly available water was consistently dirty and “dark like chocolate.” She often used the water that remained from doing laundry to clean the courtyard. Sometimes when dirty water would arrive, she would put it in buckets and wait for the dirt to settle to the bottom, using the cleanest for showering.

The system has transformed her daily use of water, and she doesn’t have to think twice about whether it’s safe. The system initially uses six filters, plus three more if the water is to be used for drinking.

“The water is good, it’s so good!” said Huitzil. “My clothes come out very clean and the water is sweet. You can even harvest it to be cleaner to drink.”

With more than 1.8 million residents, Iztapalapa has been one of the primary beneficiaries of Mexico City’s harvesting system program. But after two years, the city stopped giving away free systems when many residents, facing economic hardship and sometimes struggling to maintain the systems, sold off their parts.

“It should be easy to maintain, but it’s tedious,” Palacios Diaz said. “Unfortunately, we find ourselves in a scenario in which we not only have environmental problems, but economic problems.”

Loreta Castro Reguera, an architecture professor at Mexico’s National Autonomous University, focuses much of her work on water and urban design. She said rainwater harvesting is a great solution because during Mexico’s rainy season residents can use rainwater instead of water from the Cutzamala system — a reservoir that provides water to Mexico City and the State of Mexico.

Palacios Díaz dreams of rainwater systems in markets, malls, and other community spaces. The cooperative is also working on designs personalized for their clients’ needs — whether for a low-cost system or to fulfill a greater demand for water.

As women, she and the other members of Pixcatl want to set an example for those who want to get involved in water harvesting.

“I think it’s really beautiful we can inspire young girls and show women in another context,” said another member, Abigail López Durán, “that we can also use tools and aren’t afraid to get hurt.”

China’s proposal to create a cyber ID system faces criticism

Taipei, Taiwan — Concern is rising among China’s more than 1 billion internet users over a government proposal portrayed as a step to protect their personal information and fight against fraud. Many fear the plan would do the opposite.

China’s Ministry of Public Security and the Cyberspace Administration issued the draft “Measures for the Administration of National Network Identity Authentication Public Services” on July 26.

According to the proposal, Chinese netizens would be able to apply for virtual IDs on a voluntary basis to “minimize the excessive collection and retention of citizens’ personal information by online platforms” and “protect personal information.”

While many netizens appear to agree in their posts that companies have too much access to their personal information, others fear the cyber ID proposal, if implemented, will simply allow the government to more easily track them and control what they can say online.

Beijing lawyer Wang Cailiang said on Weibo: “My opinion is short: I am not in favor of this. Please leave a little room for citizens’ privacy.”

Shortly after the proposal was published, Tsinghua University law professor Lao Dongyan posted on her Weibo account, “The cyber IDs are like installing monitors to watch everyone’s online behavior.”

Her post has since disappeared, along with many other negative comments that can only be found on foreign social media platforms like X and Free Weibo, an anonymous and unblocked search engine established in 2012 to capture and save posts censored by China’s Sina Weibo or deleted by users.

A Weibo user under the name “Liu Jiming” said, “The authorities solemnly announced [the proposal] and solicited public opinions while blocking people from expressing their opinions. This clumsy show of democracy is really shocking.”

Beijing employs a vast network of censors to block and remove politically sensitive content, known by critics as the Great Firewall.

Since 2017, China has required internet service and content providers to verify users’ real names through national IDs, allowing authorities to more easily trace and track online activities and posts to the source.

Chinese internet experts say netizens can make that harder by using others’ accounts, providers, IDs and names on various platforms. But critics fear a single cyber ID would close those gaps in the Great Firewall.

Zola, a network engineer and well-known citizen journalist originally from China’s Hunan province, who naturalized in Taiwan, told VOA “The control of the cyber IDs is a superpower because you don’t only know a netizen’s actual name, but also the connection between the netizen and the cybersecurity ID.”

Mr. Li, a Shanghai-based dissident who did not want to disclose his full name because of the issue’s sensitivity, told VOA that the level of surveillance by China’s internet police has long been beyond imagination. He said the new proposal is a way for authorities to tell netizens that the surveillance will be more overt “just to intimidate and warn you to behave.”

Some netizens fear China could soon change the cyber ID system from a voluntary program to a requirement for online access.

A Weibo user under the name “Fang Zhifu” warned that in the future, if “the cyber ID is revoked, it will be like being sentenced to death in the cyber world.”

Meanwhile, China’s Ministry of Public Security and Cyberspace Administration say they are soliciting public opinion on the cyber ID plan until August 25.

Turkey blocks access to Instagram, gives no reason

ANKARA, Turkey — Turkey’s communications authority blocked access to the social media platform Instagram on Friday, the latest instance of a clampdown on websites in the country.

The Information and Communication Technologies Authority, which regulates the internet, announced the block early Friday but did not provide a reason. Sabah newspaper, which is close to the government, said access was blocked in response to Instagram removing posts by Turkish users that expressed condolences over the killing of Hama political leader Ismail Haniyeh.

It came days after Fahrettin Altun, the presidential communications director and aide to President Recep Tayyip Erdogan, criticized the Meta-owned platform for preventing users in Turkey from posting messages of condolences for Haniyeh.

Unlike its Western allies, Turkey does not consider Hamas to be a terror organization. A strong critic of Israel’s military actions in Gaza, Erdogan has described the group as “liberation fighters.”

The country is observing a day of mourning for Haniyeh on Friday, during which flags will be flown at half-staff.

Turkey has a track record of censoring social media and websites. Hundreds of thousands of domains have been blocked since 2022, according to the Freedom of Expression Association, a nonprofit organization regrouping lawyers and human rights activists. The video-sharing platform YouTube was blocked from 2007 to 2010.

Online misinformation fuels tensions over deadly Southport stabbing attack

LONDON — Within hours of a stabbing attack in northwest England that killed three young girls and wounded several more children, a false name of a supposed suspect was circulating on social media. Hours after that, violent protesters were clashing with police outside a nearby mosque.

Police say the name was fake, as were rumors that the 17-year-old suspect was an asylum-seeker who had recently arrived in Britain. Detectives say the suspect charged Thursday with murder and attempted murder was born in the U.K., and British media including the BBC have reported that his parents are from Rwanda.

That information did little to slow the lightning spread of the false name or stop right-wing influencers pinning the blame on immigrants and Muslims.

“There’s a parallel universe where what was claimed by these rumors were the actual facts of the case,” said Sunder Katwala, director of British Future, a think tank that looks at issues including integration and national identity. “And that will be a difficult thing to manage.”

Local lawmaker Patrick Hurley said the result was “hundreds of people descending on the town, descending on Southport from outside of the area, intent on causing trouble — either because they believe what they’ve written, or because they are bad faith actors who wrote it in the first place, in the hope of causing community division.”

One of the first outlets to report the false name, Ali Al-Shakati, was Channel 3 Now, an account on the X social media platform that purports to be a news channel. A Facebook page of the same name says it is managed by people in Pakistan and the U.S. A related website on Wednesday showed a mix of possibly AI-generated news and entertainment stories, as well as an apology for “the misleading information” in its article on the Southport stabbings.

By the time the apology was posted, the incorrect identification had been repeated widely on social media.

“Some of the key actors are probably just generating traffic, possibly for monetization,” said Katwala. The misinformation was then spread further by “people committed to the U.K. domestic far right,” he said.

Governments around the world, including Britain’s, are struggling with how to curb toxic material online. U.K. Home Secretary Yvette Cooper said Tuesday that social media companies “need to take some responsibility” for the content on their sites.

Katwala said that social platforms such as Facebook and X worked to “de-amplify” false information in real time after mass shootings at two mosques in Christchurch, New Zealand, in 2019.

Since Elon Musk, a self-styled free-speech champion, bought X, it has gutted teams that once fought misinformation on the platform and restored the accounts of banned conspiracy theories and extremists.

Rumors have swirled in the relative silence of police over the attack. Merseyside Police issued a statement saying the reported name for the suspect was incorrect, but have provided little information about him other than his age and birthplace of Cardiff, Wales.

Under U.K. law, suspects are not publicly named until they have been charged and those under 18 are usually not named at all. That has been seized on by some activists to suggest the police are withholding information about the attacker.

Tommy Robinson, founder of the far-right English Defense League, accused police of “gaslighting” the public. Nigel Farage, a veteran anti-immigration politician who was elected to Parliament in this month’s general election, posted a video on X speculating “whether the truth is being withheld from us” about the attack.

Brendan Cox, whose lawmaker wife Jo Cox was murdered by a far-right attacker in 2016, said Farage’s comments showed he was “nothing better than a Tommy Robinson in a suit.”

“It is beyond the pale to use a moment like this to spread your narrative and to spread your hatred, and we saw the results on Southport’s streets last night,” Cox told the BBC.

Rafah water facility demolition raises health risks in Gaza, UN says

GENEVA — U.N. agencies warn that the demolition of a critical water facility in Rafah in the southern Gaza Strip increases the risk of infectious diseases as people are forced to drink unsafe water while sanitary conditions continue to deteriorate.

“Until recently, that reservoir served thousands and thousands of internally displaced people who had sought refuge in Rafah in the area,” James Elder, UNICEF spokesperson, told journalists at a briefing in Geneva on Tuesday.

“Now without it, vulnerable children and families are likely to be forced again increasingly to resort to unsafe water, so putting them again at all those risks that we see time after time, day after day in Gaza — dehydration, malnutrition, diseases,” he said.

The Israeli daily Haaretz reported Monday that the troops blew up the central reservoir “on the orders of the brigade commanders” but without receiving permission from the senior level of the Southern Command. It added that the incident was being investigated by Israel’s Military Police as “a suspected violation of international law.”

 

Infections spreading

Elder said the destruction of the Canada Well reservoir “is yet another grim reminder of the assaults on families who already are in desperate need of water.”

“We have seen spikes in diarrhea, in skin infections — all due to a lack of access to hygiene and a lack of access to water,” he said, noting that people in emergencies require a minimum of 15 liters (almost 4 gallons) of water per person per day.

Now, the range of water availability in Gaza has been reduced to between 2 and 9 liters per person, per day, and some people are getting just a fraction of that, Elder said.

“Somehow, people are holding on, but of course, we are now in that deathly cycle whereby children are very malnourished. There is immense heat. There is [a] lack of water. There is a horrendous lack of sanitation, and that is the cycle,” he said.

The World Health Organization reports a surge in infectious diseases in the Gaza Strip. As of July 7, it has recorded nearly 1 million cases of acute respiratory infections, 577,000 cases of acute watery diarrhea, 107,000 of acute jaundice syndrome and 12,000 of bloody diarrhea. It also has recorded nearly 200,000 cases of scabies, lice, skin rashes, chicken pox and other illnesses.

Polio threat

The recent identification of circulating vaccine-derived poliovirus type 2 in Gaza’s sewage system is of particular concern. Under prevailing conditions in Gaza, there is a high risk of spread of this paralytic, deadly disease within the Palestinian enclave and across borders.

“Having a vaccine-derived polio virus in the sewage very likely means that it is out there somewhere in people,” WHO spokesperson Christian Lindmeier said. “It most likely is in the population, but that does not necessarily mean that we see an outbreak of cases.

“But of course, we need to be prepared. We need to be utterly prepared. And we need vaccinations, and we need vaccination campaigns,” he said.

WHO Director-General Tedros Adhanom Ghebteyesus has announced that the organization will be sending more than 1 million doses of polio vaccine to Gaza to avert the spread of the disease.

“While no cases of polio have been recorded yet, without immediate action, it is just a matter of time before it reaches the thousands of children who have been left unprotected,” he said, adding that infants under 2 are especially vulnerable “because many have not been vaccinated over the nine months of conflict.”

Before Israel began its military offensive in Gaza following a brutal attack on Israel by Hamas militants on October 7, nearly the whole population of Gaza had been immunized against polio.

However, due to the impact of the conflict, “coverage of polio now is around 89%, down from around 99% before the conflict,” UNICEF’s Elder said. “Hence, there is an increased risk for children. Now, if the child gets the full course of the vaccine, then the risk of the child getting paralyzed by polio is negligible.

“This is why it is so critical that all children are immunized. But the mass displacement, the decimation of the health infrastructure, the tremendously insecure operating environment — they all make it much more difficult, hence putting more children at risk,” he said.

Cases of polio have declined by 99% since WHO launched its global polio eradication campaign in 1988.

WHO reports polio now is endemic only in Pakistan and Afghanistan. However, more than 30 countries, including Egypt and Israel, are subject to outbreaks. The reemergence of polio tends to occur in areas of conflict or instability and within countries with poor health systems.

“We were very, very close to eradicating polio fully,” WHO spokesperson Lindmeier said. “As you know, wartime, unfortunately, creates the situation where it is very difficult to get that last mile. And it has been less than a mile that we needed to go.

“There are a few pockets around the world. Hopefully, Gaza will not become another one,” he said.

LogOn: Innovative material cools with no energy

A California company is developing a material that can cool things by sending heat into deep space. Matt Dibble has our story in this week’s edition of LogOn.

Urgent action needed to stop spread of drug-resistant malaria, scientists warn

Bangkok — Millions of lives could be put at risk unless urgent action is taken to curb the spread of drug-resistant malaria in Africa, according to a new paper published in the journal Science.

The paper says the parasite that causes malaria is showing signs of resistance to artemisinin, the main drug used to fight the disease, in several east African countries.

“Mutations indicating artemisinin-resistance have been found in more than 10% of malaria infected individuals in Ethiopia, Eritrea, Rwanda, Uganda, and Tanzania,” according to the report.

Artemisinin Combination Therapies, or ACTs, have been the cornerstone of malaria treatment in recent years — but there are worrying signs that they are becoming less effective, says report co-author Lorenz von Seidlein of the Mahidol Oxford Tropical Medicine Research Unit in Bangkok.

“We have increasing reports from eastern Africa saying that they have documented resistance against the first line treatments against malaria,” he says. “The first line treatments are artemisinin combination therapy – that has been used for the last 20 years and has worked excellently well. And it’s now not working quite as well as it used to do.”

It’s estimated that over one thousand children die every day from malaria in Africa. The World Health Organization estimates that the global death toll from malaria in 2022 — the most recent figures available — was 608,000.

Past lessons

Before artemisinin therapies were developed, chloroquine was the medicine most used to treat malaria. The report authors say that in the 1990s and early 2000s, signs that the malaria parasite was developing resistance to chloroquine were widely ignored.

“When chloroquine resistance slowly sneaked into Africa there was a whole wave of childhood mortality followed by it. So really, a large number of children — probably in the millions — died because chloroquine didn’t work as well as it used to do. And now we see these first signs that something similar is happening with the ACTs. And that is of course very worrying,” von Seidlein says.

Urgent action

The report authors urge policymakers and global funding bodies to act now to prevent artemisinin resistance taking hold.

Their recommendations include combining artemisinin drugs with other medicines.

“Combining an artemisinin derivative drug with two partner drugs in triple artemisinin combination therapies [TACTs] is the simplest, most affordable, readily implementable, and sustainable approach to counter artemisinin resistance,” the report says.

The authors also call for the rollout of new, more effective insecticides and mosquito nets; better training of community health workers; the rapid deployment of new malaria vaccines; and better monitoring of parasite mutations.

Southeast Asia

Many of these methods were used to halt the spread of artemisinin resistance in south-east Asia since 2014, notes von Seidlein.

“Ultimately, there was an understanding that this could be a major health emergency globally and so there were a lot of investments from funders for the from high-income countries towards these countries in the Greater Mekong sub-region to stop the spread of artemisinin resistant parasites,” he says.

The report says that sense of urgency must now be applied to tackling artemisinin resistance in Africa.

“We ask funders, specifically the Global Fund to Fight AIDS, Tuberculosis and Malaria [GFATM] and the U.S. Government’s President’s Malaria Initiative, to be visionary and to step up funding for malaria control and elimination programs to contain the spread of artemisinin resistance in Africa — as they have done effectively in Southeast Asia since 2014,” says report co-author Ntuli Kapologwe, the director of preventive services at Tanzania’s Ministry of Health.

Urgent action needed to stop spread of drug-resistant malaria, scientists warn

The malaria parasite is showing signs of resistance to artemisinin, the main drug used to fight the disease, in parts of Africa. A new report warns of potentially millions more deaths without immediate health policy changes. Henry Ridgwell has more from Bangkok.

AI-backed autonomous robots monitor construction progress

The construction industry is finding new uses for artificial intelligence. In a multi-story building project in the northwestern U.S. city of Seattle, autonomous robots are tasked with documenting progress and detecting potential hazards. VOA’s Natasha Mozgovaya has the story.

Galapagos Islands, many unique creatures at risk from warming waters

GALAPAGOS ISLANDS, Ecuador — Warm morning light reflects from the remains of a natural rock arch near Darwin Island, one of the most remote islands in the Galapagos. In clear, deep blue water, thousands of creatures — fish, hammerhead sharks, marine iguanas — move in search of food.

The 2021 collapse of Darwin’s Arch, named for the famed British naturalist behind the theory of evolution, came from natural erosion. But its demise underscored the fragility of a far-flung archipelago that’s coming under increased pressure both from climate change and invasive species.

Warming oceans affect the food sources of many of the seagoing animals in the Galapagos. Marine iguanas — one of many species that are endemic, or unique, to the Galapagos — have a harder time finding the red and green algae they prefer. Sea turtles struggle to nest in warmer temperatures. Raising young gets harder as water warms and fewer nutrients are available.

While the Galapagos are known for a great multitude of species, their numbers aren’t unlimited.

“We have something of everything here – that’s why people say the Galapagos is so diverse – but we have a small number of each thing,” said Natasha Cabezas, a naturalist guide.

The Galapagos have always been sensitive to changes in ocean temperature. The archipelago itself is located where major ocean currents converge — cool from the south, warm from the north, and a cold upwelling current from the west. Then there’s El Nino, the periodic and natural Pacific Ocean warming that affects weather worldwide.

While temperatures vary depending on the season and other naturally-occurring climate events, ocean temperatures have been rising because of human-caused climate change as oceans absorb the vast majority of excess heat in the atmosphere. The ocean experienced its warmest decade since at least the 1800s in the last 10 years, and 2023 was the ocean’s warmest year on record.

Early June brings winter in the Southern Hemisphere, and the Cromwell current brings whale sharks, hammerheads, and massive sunfish to the surface. It also provides nutrients for penguins, marine iguanas and sea lions in search of food. As more of those animals make themselves known this season, scientists are tracking how they fared in the warming of the past year’s El Nino.

El Nino can bring food shortages for some species like marine iguanas and sea turtles, as the warmer ocean means dwindling food sources. Scientists observing the species have noted a significant decline in population numbers during El Nino events.

Marine iguanas swim like snakes through the water from rock to rock as waves crash against the shore of Fernandina Island. They latch themselves onto the undersea rocks to feed on algae growing there, while sea lions spin around them like puppies looking for someone to play with.

The iguanas were “one of the most affected species from El Niño last year and right now they are still recovering,” said Galapagos Conservancy Director Jorge Carrión.

As rising ocean temperatures threaten aquatic or seagoing life, on land there’s a different problem. Feral animals — cats, dogs, pigs, goats and cattle, none of them native — are threatening the unique species of the islands.

After the COVID-19 pandemic, many people are abandoning the dogs and cats they wanted to keep them company, Cabezas said.

“If you don’t take care of them they become a problem and now it’s a shame to see dogs everywhere. We have a big problem right now I don’t know what we’re going to do,” she said.

The non-native animals are a special threat to the giant tortoises closely associated with the Galapagos. The tortoises declined dramatically in the 19th century due to hunting and poaching, and authorities have worked to protect them from humans. It’s been illegal to kill a giant tortoise since 1933.

“In one night, a feral pig can destroy all nesting sites in an area,” Carrión said. Park rangers try to visit areas with nesting sites once a day, and kill pigs when they find them. But the pigs are elusive, Carrion said.

Feral cats feed on marine iguana hatchings, and both pigs and cats compete for food with the tortoises.

If invasive species and warming oceans weren’t enough, there’s the plastic that is a widespread problem in the world’s oceans. One recent study reported microplastics in the bellies of Galapagos penguins.

“There are no animals in the Galapagos that do not have microplastics in their food,” Carrión said.

Manipulated video shared by Musk mimics Harris’ voice, raising concerns about AI in politics

New York — A manipulated video that mimics the voice of Vice President Kamala Harris saying things she did not say is raising concerns about the power of artificial intelligence to mislead with Election Day about three months away.

The video gained attention after tech billionaire Elon Musk shared it on his social media platform X on Friday evening without explicitly noting it was originally released as parody.

The video uses many of the same visuals as a real ad that Harris, the likely Democratic president nominee, released last week launching her campaign. But the video swaps out the voice-over audio with another voice that convincingly impersonates Harris.

“I, Kamala Harris, am your Democrat candidate for president because Joe Biden finally exposed his senility at the debate,” the voice says in the video. It claims Harris is a “diversity hire” because she is a woman and a person of color, and it says she doesn’t know “the first thing about running the country.” The video retains “Harris for President” branding. It also adds in some authentic past clips of Harris.

Mia Ehrenberg, a Harris campaign spokesperson, said in an email to The Associated Press: “We believe the American people want the real freedom, opportunity and security Vice President Harris is offering; not the fake, manipulated lies of Elon Musk and Donald Trump.”

The widely shared video is an example of how lifelike AI-generated images, videos or audio clips have been utilized both to poke fun and to mislead about politics as the United States draws closer to the presidential election. It exposes how, as high-quality AI tools have become far more accessible, there remains a lack of significant federal action so far to regulate their use, leaving rules guiding AI in politics largely to states and social media platforms.

The video also raises questions about how to best handle content that blurs the lines of what is considered an appropriate use of AI, particularly if it falls into the category of satire.

The original user who posted the video, a YouTuber known as Mr Reagan, has disclosed both on YouTube and on X that the manipulated video is a parody. But Musk’s post, which has been viewed more than 123 million times, according to the platform, only includes the caption “This is amazing” with a laughing emoji.

X users who are familiar with the platform may know to click through Musk’s post to the original user’s post, where the disclosure is visible. Musk’s caption does not direct them to do so.

While some participants in X’s “community note” feature to add context to posts have suggested labeling Musk’s post, no such label had been added to it as of Sunday afternoon. Some users online questioned whether his post might violate X’s policies, which say users “may not share synthetic, manipulated, or out-of-context media that may deceive or confuse people and lead to harm.”

The policy has an exception for memes and satire as long as they do not cause “significant confusion about the authenticity of the media.”

Musk endorsed former President Donald Trump, the Republican nominee, earlier this month. Neither Mr Reagan nor Musk immediately responded to emailed requests for comment Sunday.

Two experts who specialize in AI-generated media reviewed the fake ad’s audio and confirmed that much of it was generated using AI technology.

One of them, University of California, Berkeley, digital forensics expert Hany Farid, said the video shows the power of generative AI and deepfakes.

“The AI-generated voice is very good,” he said in an email. “Even though most people won’t believe it is VP Harris’ voice, the video is that much more powerful when the words are in her voice.”

He said generative AI companies that make voice-cloning tools and other AI tools available to the public should do better to ensure their services are not used in ways that could harm people or democracy.

Rob Weissman, co-president of the advocacy group Public Citizen, disagreed with Farid, saying he thought many people would be fooled by the video.

“I don’t think that’s obviously a joke,” Weissman said in an interview. “I’m certain that most people looking at it don’t assume it’s a joke. The quality isn’t great, but it’s good enough. And precisely because it feeds into preexisting themes that have circulated around her, most people will believe it to be real.”

Weissman, whose organization has advocated for Congress, federal agencies and states to regulate generative AI, said the video is “the kind of thing that we’ve been warning about.”

Other generative AI deepfakes in both the U.S. and elsewhere would have tried to influence voters with misinformation, humor or both.

In Slovakia in 2023, fake audio clips impersonated a candidate discussing plans to rig an election and raise the price of beer days before the vote. In Louisiana in 2022, a political action committee’s satirical ad superimposed a Louisiana mayoral candidate’s face onto an actor portraying him as an underachieving high school student.

Congress has yet to pass legislation on AI in politics, and federal agencies have only taken limited steps, leaving most existing U.S. regulation to the states. More than one-third of states have created their own laws regulating the use of AI in campaigns and elections, according to the National Conference of State Legislatures.

Beyond X, other social media companies also have created policies regarding synthetic and manipulated media shared on their platforms. Users on the video platform YouTube, for example, must reveal whether they have used generative artificial intelligence to create videos or face suspension.

Blood tests could help diagnose Alzheimer’s, study finds

Washington — New blood tests could help doctors diagnose Alzheimer’s disease faster and more accurately, researchers reported Sunday – but some appear to work far better than others.

It’s tricky to tell if memory problems are caused by Alzheimer’s. That requires confirming one of the disease’s hallmark signs — buildup of a sticky protein called beta-amyloid — with a hard-to-get brain scan or uncomfortable spinal tap. Many patients instead are diagnosed based on symptoms and cognitive exams.

Labs have begun offering a variety of tests that can detect certain signs of Alzheimer’s in blood. Scientists are excited by their potential, but the tests aren’t widely used yet because there’s little data to guide doctors about which kind to order and when. The U.S. Food and Drug Administration hasn’t formally approved any of them and there’s little insurance coverage.

“What tests can we trust?” asked Dr. Suzanne Schindler, a neurologist at Washington University in St. Louis who’s part of a research project examining that. While some are very accurate, “other tests are not much better than a flip of a coin.”

Demand for earlier Alzheimer’s diagnosis is increasing

More than 6 million people in the United States and millions more around the world  

have Alzheimer’s, the most common form of dementia. Its telltale “biomarkers” are brain-clogging amyloid plaques and abnormal tau protein that leads to neuron-killing tangles.

New drugs, Leqembi and Kisunla, can modestly slow worsening symptoms by removing gunky amyloid from the brain. But they only work in the earliest stages of Alzheimer’s and proving patients qualify in time can be difficult. Measuring amyloid in spinal fluid is invasive. A special PET scan to spot plaques is costly and getting an appointment can take months.

Even specialists can struggle to tell if Alzheimer’s or something else is to blame for a patient’s symptoms.

“I have patients not infrequently who I am convinced have Alzheimer’s disease and I do testing and it’s negative,” Schindler said.

New study suggests blood tests for Alzheimer’s can be simpler, faster

Blood tests so far have been used mostly in carefully controlled research settings. But a new study of about 1,200 patients in Sweden shows they also can work in the real-world bustle of doctors’ offices — especially primary care doctors who see far more people with memory problems than specialists but have fewer tools to evaluate them.

In the study, patients who visited either a primary care doctor or a specialist for memory complaints got an initial diagnosis using traditional exams, gave blood for testing and were sent for a confirmatory spinal tap or brain scan.

Blood testing was far more accurate, Lund University researchers reported Sunday at the Alzheimer’s Association International Conference in Philadelphia. The primary care doctors’ initial diagnosis was 61% accurate and the specialists’ 73% — but the blood test was 91% accurate, according to the findings, which also were published in the Journal of the American Medical Association.

Which blood tests for Alzheimer’s work best?

There’s almost “a wild West” in the variety being offered, said Dr. John Hsiao of the National Institute on Aging. They measure different biomarkers, in different ways.

Doctors and researchers should only use blood tests proven to have a greater than 90% accuracy rate, said Alzheimer’s Association chief science officer Maria Carrillo.

Today’s tests most likely to meet that benchmark measure what’s called p-tau217, Carrillo and Hsiao agreed. Schindler helped lead an unusual direct comparison of several kinds of blood tests, funded by the Foundation for the National Institutes of Health, that came to the same conclusion.

That type of test measures a form of tau that correlates with how much plaque buildup someone has, Schindler explained. A high level signals a strong likelihood the person has Alzheimer’s while a low level indicates that’s probably not the cause of memory loss.

Several companies are developing p-tau217 tests including ALZpath Inc., Roche, Eli Lilly and C2N Diagnostics, which supplied the version used in the Swedish study.

Who should use blood tests for Alzheimer’s?

Only doctors can order them from labs. The Alzheimer’s Association is working on guidelines and several companies plan to seek FDA approval, which would clarify proper use.

For now, Carrillo said doctors should use blood testing only in people with memory problems, after checking the accuracy of the type they order.

Especially for primary care physicians, “it really has great potential to help them in sorting out who to give a reassuring message and who to send on to memory specialists,” said Dr. Sebastian Palmqvist of Lund University, who led the Swedish study with Lund’s Dr. Oskar Hansson.

The tests aren’t yet for people who don’t have symptoms but worry about Alzheimer’s in the family — unless it’s part of enrollment in research studies, Schindler stressed.

That’s partly because amyloid buildup can begin two decades before the first sign of memory problems, and so far, there are no preventive steps other than basic advice to eat healthy, exercise and get enough sleep. But there are studies underway testing possible therapies for people at high risk of Alzheimer’s, and some include blood testing.

Can tech help solve the Los Angeles homeless crisis? Finding shelter may someday be a click away

LOS ANGELES — Billions of dollars have been spent on efforts to get homeless people off the streets in California, but outdated computer systems with error-filled data are all too often unable to provide even basic information like where a shelter bed is open on any given night, inefficiencies that can lead to dire consequences.

The problem is especially acute in Los Angeles, where more than 45,000 people — many suffering from serious mental illness, substance addictions or both — live in litter-strewn encampments that have spread into virtually every neighborhood, and where rows of rusting RVs line entire blocks.

Even in the state that is home to Silicon Valley, technology has not kept up with the long-running crisis. In an age when anyone can book a hotel room or rent a car with a few strokes on a mobile phone, no system exists that provides a comprehensive listing of available shelter beds in Los Angeles County, home to more than 1 in 5 unhoused people in the U.S.

Mark Goldin, chief technology officer for Better Angels United, a nonprofit group, described L.A.’s technology as “systems that don’t talk to one another, lack of accurate data, nobody on the same page about what’s real and isn’t real.”

The systems can’t answer “exactly how many people are out there at any given time. Where are they?” he said.

The ramifications for people living on the streets could mean whether someone sleeps another night outside or not, a distinction that can be life-threatening.

“They are not getting the services to the people at the time that those people either need the service, or are mentally ready to accept the services,” said Adam Miller, a tech entrepreneur and CEO of Better Angels.

The problems were evident at a filthy encampment in the city’s Silver Lake neighborhood, where Sara Reyes, executive director of SELAH Neighborhood Homeless Coalition, led volunteers distributing water, socks and food to homeless people, including one who appeared unconscious.

She gave out postcards with the address of a nearby church where the coalition provides hot food and services. A small dog bolted out of a tent, frantically barking, while a disheveled man wearing a jacket on a blistering hot day shuffled by a stained mattress.

At the end of the visit Reyes began typing notes into her mobile phone, which would later be retyped into a coalition spreadsheet and eventually copied again into a federal database.

“Anytime you move it from one medium to another, you can have data loss. We know we are not always getting the full picture,” Reyes said. The “victims are the people the system is supposed to serve.”

The technology has sputtered while the homeless population has soared. Some ask how can you combat a problem without reliable data to know what the scope is? An annual tally of homeless people in the city recently found a slight decline in the population, but some experts question the accuracy of the data, and tents and encampments can be seen just about everywhere.

Los Angeles Mayor Karen Bass has pinpointed shortcomings with technology as among the obstacles she faces in homelessness programs and has described the city’s efforts to slow the crisis as “building the plane while flying it.”

She said earlier this year that three to five homeless people die every day on the streets of L.A.

On Thursday, Gov. Gavin Newsom ordered state agencies to start removing homeless encampments on state land in his boldest action yet following a Supreme Court ruling allowing cities to enforce bans on sleeping outside in public spaces.

There is currently no uniform practice for caseworkers to collect and enter information into databases on the homeless people they interview, including notes taken on paper. The result: Information can be lost or recorded incorrectly, and it becomes quickly outdated with the lag time between interviews and when it’s entered into a database. 

The main federal data system, known as the Homeless Management Information System, or HMIS, was designed as a desktop application, making it difficult to operate on a mobile phone.

“One of the reasons the data is so bad is because what the case managers do by necessity is they take notes, either on their phones or on scrap pieces of paper or they just try to remember it, and they don’t typically input it until they get back to their desk” hours, days, a week or even longer afterward, Miller said.

Every organization that coordinates services for homeless people uses an HMIS program to comply with data collection and reporting standards mandated by the U.S. Department of Housing and Urban Development. But the systems are not all compatible.

Sam Matonik, associate director of data at L.A.-based People Assisting the Homeless, a major service provider, said his organization is among those that must reenter data because Los Angeles County uses a proprietary data system that does not talk to the HMIS system.  

“Once you’re manually double-entering things, it opens the door for all sorts of errors,” Matonik said. “Small numerical errors are the difference between somebody having shelter and not.”

Bevin Kuhn, acting deputy chief of analytics for the Los Angeles Homeless Services Authority, the agency that coordinates homeless housing and services in Los Angeles County, said work is underway to create a database of 23,000 beds by the end of the year as part of technology upgrades.

For case managers, “just seeing … the general bed availability is challenging,” Kuhn said.

Among other changes is a reboot of the HMIS system to make it more compatible with mobile apps and developing a way to measure if timely data is being entered by case workers, Kuhn said.

It’s not uncommon for a field worker to encounter a homeless person in crisis who needs immediate attention, which can create delays in collecting data. Los Angeles Homeless Services Authority aims for data to be entered in the system within 72 hours, but that benchmark is not always met.

In hopes of filling the void, Better Angels assembled a team experienced in building large-scale software applications. They are constructing a mobile-friendly prototype for outreach workers — to be donated to participating groups in Los Angeles County — that will be followed by systems for shelter operators and a comprehensive shelter bed database.

Since homeless people are transient and difficult to locate for follow-up services, one feature would create a map of places where an individual had been encountered, allowing case managers to narrow the search.

Services are often available, but the problem is linking them with a homeless person in real time. So, a data profile would show services the individual received in the past, medical issues and make it easy to contact health workers, if needed.

As a secondary benefit — if enough agencies and providers agree to participate — the software could produce analytical information and data visualizations, spotlighting where homeless people are moving around the county, or concentrations of where homeless people have gathered.

One key goal for the prototypes: ease of use even for workers with scant digital literacy. Information entered into the app would be immediately unloaded to the database, eliminating the need for redundant reentries while keeping information up to date.

Time is often critical. Once a shelter bed is located, there is a 48-hour window for the spot to be claimed, which Reyes says happens only about half the time. The technology is so inadequate, the coalition sometimes doesn’t learn a spot is open until it has expired.

She has been impressed with the speed of the Better Angels app, which is in testing, and believes it would cut down on the number of people who miss the housing window, as well as create more reliability for people trying to obtain services.

“I’m hoping Better Angels helps us put the human back into this whole situation,” Reyes said.  

Climate change imperils drought-stricken Morocco’s cereal farmers, food supply

KENITRA, Morocco — Golden fields of wheat no longer produce the bounty they once did in Morocco. A six-year drought has imperiled the country’s entire agriculture sector, including farmers who grow cereals and grains used to feed humans and livestock.

The North African nation projects this year’s harvest will be smaller than last year in both volume and acreage, putting farmers out of work and requiring more imports and government subsidies to prevent the price of staples like flour from rising for everyday consumers.

“In the past, we used to have a bounty — a lot of wheat. But during the last seven or eight years, the harvest has been very low because of the drought,” said Al Housni Belhoussni, a small-scale farmer who has long tilled fields outside of the city of Kenitra.

Belhoussni’s plight is familiar to grain farmers throughout the world confronting a hotter and drier future. Climate change is imperiling the food supply and, in regions like North Africa, shrinking the annual yields of cereals that dominate diets around the world — wheat, rice, maize and barley.

The region is one of the most vulnerable in the world to climate change. Delays to annual rains and inconsistent weather patterns have pushed the growing season later in the year and made planning difficult for farmers.

In Morocco, where cereals account for most of the farmed land and agriculture employs the majority of workers in rural regions, the drought is wreaking havoc and touching off major changes that will transform the makeup of the economy. It has forced some to leave their fields fallow. It has also made the areas they do elect to cultivate less productive, producing far fewer sacks of wheat to sell than they once did.

In response, the government has announced restrictions on water use in urban areas — including on public baths and car washes — and in rural ones, where water going to farms has been rationed.

“The late rains during the autumn season affected the agriculture campaign. This year, only the spring rains, especially during the month of March, managed to rescue the crops,” said Abdelkrim Naaman, the chairman of Nalsya. The organization has advised farmers on seeding, irrigation and drought mitigation as less rain falls and less water flows through Morocco’s rivers.

The Agriculture Ministry estimates that this year’s wheat harvest will yield roughly 3.1 billion kilograms, far less than last year’s 5.5 billion kilograms — a yield that was still considered low. The amount of land seeded has dramatically shrunk as well, from 36,700 square kilometers to 9,540 square miles 24,700 square kilometers.

Such a drop constitutes a crisis, said Driss Aissaoui, an analyst and former member of the Moroccan Ministry for Agriculture.

“When we say crisis, this means that you have to import more,” he said. “We are in a country where drought has become a structural issue.”

Leaning more on imports means the government will have to continue subsidizing prices to ensure households and livestock farmers can afford dietary staples for their families and flocks, said Rachid Benali, the chairman of the farming lobby COMADER.

The country imported nearly 2.5 million tons of common wheat between January and June. However, such a solution may have an expiration date, particularly because Morocco’s primary source of wheat, France, is facing shrinking harvests as well.

The United Nations’ Food and Agriculture Organization ranked Morocco as the world’s sixth-largest wheat importer this year, between Turkey and Bangladesh, which both have much bigger populations.

“Morocco has known droughts like this and in some cases known droughts that las longer than 10 years. But the problem, this time especially, is climate change,” Benali said.

World’s largest platypus conservation center welcomes first residents

sydney, australia — The world’s largest platypus conservation center has welcomed its first residents as part of a project to protect the semi-aquatic mammal found only in Australia amid threats to its habitat from extreme weather and humans. 

The four platypuses — two females and two males — were released over the last two weeks into a custom-built research facility at Taronga Western Plains Zoo in Dubbo, about 400 kilometers (250 miles), northwest of Sydney.  

Featuring multi-tiered streams, waterfalls, pools and earth banks for burrowing, the facility will help researchers understand more about the species, Taronga Conservation Society Australia official Phoebe Meagher told Reuters. 

“This facility will allow us to not only save the species from the immediate threats of climate change, but also in the long term, be able to repopulate those populations,” she said. 

“We would love to see some puggles or baby platypus in the facility and understand what led to that reproductive success.” 

The facility was formed as a partnership between the Taronga Conservation Society Australia, San Diego Zoo Wildlife Alliance, the University of New South Wales, the New South Wales state government and wildlife rescue organization WIRES. 

Boasting the bill of a duck, webbed feet and a beaver-like tail, the platypus is unique to Australia. The nocturnal mammals lay eggs and live mostly across the eastern seaboard, from the far north of Queensland to the island state of Tasmania, close to rivers and streams whose beds and banks they forage for food. 

Platypus numbers may have more than halved over several decades, research models show, but figures are hard to pinpoint. Environment groups estimate the total population between 30,000 and 300,000. 

“Sadly, we’re not leaving many places left in the wild for platypus,” Meagher said. “So these platypus that we have here … will really fill those knowledge gaps and allow us to help save this species.”  

Judge’s ruling temporarily allows for unlicensed Native Hawaiian midwifery

HONOLULU — A Hawaii judge has temporarily blocked the state from enforcing a law requiring the licensing of practitioners and teachers of traditional Native Hawaiian midwifery while a lawsuit seeking to overturn the statute wends its way through the courts.

Lawmakers enacted the midwife licensure law, which asserted that the “improper practice of midwifery poses a significant risk of harm to the mother or newborn, and may result in death,” in 2019. Violations are punishable by up to a year in jail, plus thousands of dollars in criminal and civil fines.

The measure requires anyone who provides “assessment, monitoring, and care” during pregnancy, labor, childbirth and the postpartum period to be licensed.

A group of women sued, arguing that a wide range of people, including midwives, doulas, lactation consultants and even family and friends of the new mother would be subject to penalties and criminal liability.

Their complaint also said the law threatens the plaintiffs’ ability to serve women who seek traditional Native Hawaiian births.

Judge Shirley Kawamura issued a ruling late Tuesday afternoon barring the state from “enforcing, threatening to enforce or applying any penalties to those who practice, teach, and learn traditional Native Hawaiian healing practices of prenatal, maternal and child care.”

Plaintiffs testified during a four-day hearing last month that the law forces them to get licensed through costly out-of-state programs that don’t align with Hawaiian culture.

Ki’inaniokalani Kahoʻohanohano testified that a lack of Native Hawaiian midwives when she prepared to give birth for the first time in 2003 inspired her to eventually become one herself. She described how she spent years helping to deliver as many as three babies a month, receiving them in a traditional cloth made of woven bark and uttering sacred chants as she welcomed them into the world.

The law constitutes a deprivation of Native Hawaiian customary rights, which are protected by the Hawaii constitution, Kawamura’s ruling said, and the “public interest weighs heavily towards protecting Native Hawaiian customs and traditions that are at risk of extinction.”

The dispute is the latest in a long debate about how and whether Hawaii should regulate the practice of traditional healing arts that date to well before the islands became the 50th state in 1959. Those healing practices were banished or severely restricted for much of the 20th century, but the Hawaiian Indigenous rights movement of the 1970s renewed interest in them.

The state eventually adopted a system under which councils versed in Native Hawaiian healing certify traditional practitioners, though the plaintiffs in the lawsuit say their efforts to form such a council for midwifery have failed.

The judge also noted in her ruling that the preliminary injunction is granted until there is a council that can recognize traditional Hawaiian birthing practitioners.

“This ruling means that traditional Native Hawaiian midwives can once again care for families, including those who choose home births, who can’t travel long distances, or who don’t feel safe or seen in other medical environments,” plaintiff and midwife trainee Makalani Franco-Francis said in a statement Wednesday. “We are now free to use our own community wisdom to care for one another without fear of prosecution.”

She testified last month how she learned customary practices from Kahoʻohanohano, including cultural protocols for a placenta, such as burying it to connect a newborn to its ancestral lands.

The judge found, however, that the state’s regulation of midwifery more broadly speaking is “reasonably necessary to protect the health, safety, and welfare of mothers and their newborns.”

The ruling doesn’t block the law as it pertains to unlicensed midwives who do not focus on Hawaiian birthing practices, said Hillary Schneller, an attorney with the Center for Reproductive Rights, which represents the women. “That is a gap that this order doesn’t address.”

The case is expected to continue to trial to determine whether the law should be permanently blocked.

The state attorney general’s office said in an email Wednesday that it was still reviewing the decision.

US claims TikTok collected user views on issues like abortion, gun control

WASHINGTON — In a fresh broadside against one of the world’s most popular technology companies, the Justice Department late Friday accused TikTok of harnessing the capability to gather bulk information on users based on views on divisive social issues like gun control, abortion and religion.

Government lawyers wrote in a brief filed to the federal appeals court in Washington that TikTok and its Beijing-based parent company ByteDance used an internal web-suite system called Lark to enable TikTok employees to speak directly with ByteDance engineers in China.

TikTok employees used Lark to send sensitive data about U.S. users, information that has wound up being stored on Chinese servers and accessible to ByteDance employees in China, federal officials said.

One of Lark’s internal search tools, the filing states, permits ByteDance and TikTok employees in the U.S. and China to gather information on users’ content or expressions, including views on sensitive topics, such as abortion or religion. Last year, The Wall Street Journal reported TikTok had tracked users who watched LGBTQ content through a dashboard the company said it had since deleted.

The new court documents represent the government’s first major defense in a consequential legal battle over the future of the popular social media platform, which is used by more than 170 million Americans. Under a law signed by President Joe Biden in April, the company could face a ban in a few months if it doesn’t break ties with ByteDance.

The measure was passed with bipartisan support after lawmakers and administration officials expressed concerns that Chinese authorities could force ByteDance to hand over U.S. user data or sway public opinion towards Beijing’s interests by manipulating the algorithm that populates users’ feeds.

The Justice Department warned, in stark terms, of the potential for what it called “covert content manipulation” by the Chinese government, saying the algorithm could be designed to shape content that users receive.

“By directing ByteDance or TikTok to covertly manipulate that algorithm; China could for example further its existing malign influence operations and amplify its efforts to undermine trust in our democracy and exacerbate social divisions,” the brief states.

The concern, they said, is more than theoretical, alleging that TikTok and ByteDance employees are known to engage in a practice called “heating” in which certain videos are promoted in order to receive a certain number of views. While this capability enables TikTok to curate popular content and disseminate it more widely, U.S. officials posit it can also be used for nefarious purposes.

Justice Department officials are asking the court to allow a classified version of its legal brief, which won’t be accessible to the two companies.

Nothing in the redacted brief “changes the fact that the Constitution is on our side,” TikTok spokesperson Alex Haurek said in a statement.

“The TikTok ban would silence 170 million Americans’ voices, violating the 1st Amendment,” Haurek said. “As we’ve said before, the government has never put forth proof of its claims, including when Congress passed this unconstitutional law. Today, once again, the government is taking this unprecedented step while hiding behind secret information. We remain confident we will prevail in court.”

In the redacted version of the court documents, the Justice Department said another tool triggered the suppression of content based on the use of certain words. Certain policies of the tool applied to ByteDance users in China, where the company operates a similar app called Douyin that follows Beijing’s strict censorship rules.

But Justice Department officials said other policies may have been applied to TikTok users outside of China. TikTok was investigating the existence of these policies and whether they had ever been used in the U.S. in, or around, 2022, officials said.

The government points to the Lark data transfers to explain why federal officials do not believe that Project Texas, TikTok’s $1.5 billion mitigation plan to store U.S. user data on servers owned and maintained by the tech giant Oracle, is sufficient to guard against national security concerns.

In its legal challenge against the law, TikTok has heavily leaned on arguments that the potential ban violates the First Amendment because it bars the app from continued speech unless it attracts a new owner through a complex divestment process. It has also argued divestment would change the speech on the platform because a new social platform would lack the algorithm that has driven its success.

In its response, the Justice Department argued TikTok has not raised any valid free speech claims, saying the law addresses national security concerns without targeting protected speech, and argues that China and ByteDance, as foreign entities, aren’t shielded by the First Amendment.

TikTok has also argued the U.S. law discriminates on viewpoints, citing statements from some lawmakers critical of what they viewed as an anti-Israel tilt on the platform during its war in Gaza.

Justice Department officials disputes that argument, saying the law at issue reflects their ongoing concern that China could weaponize technology against U.S. national security, a fear they say is made worse by demands that companies under Beijing’s control turn over sensitive data to the government. They say TikTok, under its current operating structure, is required to be responsive to those demands.

Oral arguments in the case is scheduled for September. 

NASA Mars rover captures rock that could hold fossilized microbes

washington — NASA’s rover Perseverance on Mars has made what could be its most astonishing discovery to date: possible signs of ancient life on the Red Planet.

The six-wheeled robotic explorer came across an intriguing, arrow-shaped rock dubbed “Cheyava Falls” that may harbor fossilized microbes from billions of years ago, when Mars was a watery world.

Perseverance drilled into the enigmatic rock to collect a core sample on July 21, as it traversed Neretva Vallis, an ancient river valley.

The samples carefully stowed beneath the rover’s belly are destined to eventually return to Earth, where they will undergo more comprehensive analysis.

“Cheyava Falls is the most puzzling, complex, and potentially important rock yet investigated by Perseverance,” project scientist Ken Farley of Caltech said Thursday.

Three compelling clues have scientists buzzing.

White calcium sulfate veins run the length of the rock, a telltale sign that water once flowed through it.

Between these veins is a reddish middle area, teeming with organic compounds, as detected by the rover’s SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals) instrument.

Finally, tiny off-white splotches ringed with black, reminiscent of leopard spots, contain chemicals that suggest energy sources for ancient microbes, according to scans by the PIXL (Planetary Instrument for X-ray Lithochemistry) instrument.

“On Earth, these types of features in rocks are often associated with the fossilized record of microbes living in the subsurface,” said David Flannery, an astrobiologist and member of the Perseverance science team from the Queensland University of Technology in Australia.

The quest to confirm ancient Martian life is far from over, however.

The real test will come when Perseverance’s precious rock samples are returned to Earth as part of the Mars Sample Return Program, a collaboration between NASA and the European Space Agency slated for the 2030s.

While there are alternative explanations for these findings that do not involve microbes, there is a tantalizing chance that Perseverance’s core sample might contain actual fossilized microbes — potentially making history as the first proof of life beyond Earth.

“We have zapped that rock with lasers and X-rays and imaged it literally day and night from just about every angle imaginable,” said Farley.

“Scientifically, Perseverance has nothing more to give. To fully understand what really happened in that Martian river valley at Jezero Crater billions of years ago, we’d want to bring the Cheyava Falls sample back to Earth, so it can be studied with the powerful instruments available in laboratories,” he explained.

Advocates hail sub-Saharan Africa’s lead in global HIV response

washington — Thousands of policymakers, health care professionals and advocates gathered this week in Munich, Germany, to take stock of the global fight against HIV as they try to meet the 2030 deadline set by world leaders for eliminating AIDS as a public health threat.

Advocates hailed sub-Saharan Africa’s progress in the global HIV response, with tens of millions of people now on lifesaving drugs.

A new UNAIDS survey released during the conference reported that “approximately 30.7 million of the estimated 39.9 million people living with HIV globally were receiving antiretroviral therapy in 2023.”

The report called that result a “landmark public health achievement,” and health officials at the conference said it would not be possible without the “immense political will” of regional leaders and NGOs.

Anne Githuku-Shongwe, the UNAIDS regional director for eastern and southern Africa, told VOA from Johannesburg that recently there has been a “huge focus” on ensuring that anyone living with HIV in sub-Saharan Africa gets access to testing and treatment to ensure virus suppression, so the virus becomes untransmissible.

“The data is telling us that 84% of people living with HIV in our region have access to treatment. And 94% of those on treatment have been able to keep [the virus] suppressed so it is untransmissible,” she said.

However, Githuku-Shongwe pointed out that despite the progress that has been made, some countries in Africa are lagging behind in the battle against HIV/AIDS, partly because of civil wars, humanitarian setbacks and sheer negligence. She mentioned South Sudan, Angola, Madagascar, Mauritius, Seychelles and the Comoros as examples.

“[Countries] like Mauritius are barely at 50% of the treatment target,” she said, adding that another critical challenge being faced is the lack of attention to children living with the virus.

The report said children aged 0-14 years are still contracting HIV. An estimated 120,000 children got the virus in 2023, bringing the number of children living with HIV globally to 1.4 million, 86% of whom are in sub-Saharan Africa, according to the UNAIDS report.

Worries about donor funding

Githuku-Shongwe said there have been major investments from partners – particularly from PEPFAR, a U.S.-funded initiative to tackle the HIV/AIDS crisis, and the Global Fund to Fight AIDS, Tuberculosis and Malaria. She noted that in some countries, up to 99% of the HIV response is externally funded.

“But with time we are seeing that dwindling,” she said.

Nearly $19.8 billion was available in 2023 for HIV programs in low- and middle-income countries, almost $9.5 billion short of the amount needed by 2025, the report said.

Catherine Connor, vice president in charge of public policy and advocacy at the Elizabeth Glaser Pediatric AIDS Foundation, a Washington nonprofit, told VOA from Munich that the data on infections in children were “troubling” and pointed to a lackadaisical approach toward pediatric HIV.

“The report clearly shows that children are one out of every 10 new infections, which is really high,” she said. “But there’s also an outsized mortality issue around children. Children make up 3% of the HIV-infected population, but they represent 12% of deaths.”

Connor said there’s inequity in treatment, particularly for children living with HIV.

“Children can’t take themselves to clinics. They often don’t even know they’ve been exposed to HIV,” she said. “So they really rely on caregivers, the community around them, to ensure not just that they can be identified as being HIV-exposed or potentially HIV-positive, but also get the needed support to maintain their health, even if they are on treatment.”

Connor concluded that world leaders and policymakers should be made aware how significant it is to act on HIV prevention, because if the world fails to take steps to curtail the virus, then “we will not end AIDS.”

“It’s almost like having a dam holding back a river of water,” she said.

“HIV is preventable and treatable, but it is not curable. And so, if we let cracks in that dam get so bad, it’s going to break, and we are going to see a reemergence of the HIV/AIDS pandemic in ways we have never seen,” Connor said.