Ars Technica

Big brands are allocating small amounts of their advertising budget to Elon Musk’s X, seeking to avoid being seen as boycotting the social media platform and triggering a public fallout with its billionaire owner.

Multiple marketing executives told the Financial Times that companies have felt pressure to spend a nominal sum on X following Musk’s high-profile role in US President Donald Trump’s administration.

They said Musk’s pursuit of legal action against groups that have stopped advertising since his $44 billion acquisition in late 2022 had also sparked alarm. X last month added about half a dozen more companies to its case including Shell, Nestlé, Pinterest, and Lego.

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Late last week, President Donald Trump decided to upend the automotive industry by levying a new 25 percent import tariff on all imported cars, which goes into effect on April 2. An additional 25 percent tariff on car parts is set to go into effect within the next month, which promises to make US-made cars more expensive as well, as many parts and subassemblies used in domestic manufacturing come from suppliers in Canada or Mexico.

During the election campaign (and in the years preceding it), Trump repeatedly claimed that the cost of tariffs would be borne by the exporters. But tariffs don't work that way—they're paid by the importer, at the time of import.

The White House does not appear to have any concerns about this, despite a report in The Wall Street Journal last week claiming that Trump had warned automakers not to pass the costs on to their customers.

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QLED TV manufacturers have dug themselves into a hole.

After years of companies promising that their quantum dot light-emitting diode TVs use quantum dots (QDs) to boost color, some industry watchers and consumers have recently started questioning whether QLED TVs use QDs at all. Lawsuits have been filed, accusing companies like TCL of using misleading language about whether their QLED TVs actually use QDs.

In this article, we'll break down why new conspiracy theories about QLED TVs are probably overblown. We'll also explore why misleading marketing from TV brands is responsible for customer doubt and how it all sets a bad precedent for the future of high-end displays, including OLED TVs and monitors.

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A prominent computer scientist who has spent 20 years publishing academic papers on cryptography, privacy, and cybersecurity has gone incommunicado, had his professor profile, email account, and phone number removed by his employer, Indiana University, and had his homes raided by the FBI. No one knows why.

Xiaofeng Wang has a long list of prestigious titles. He was the associate dean for research at Indiana University's Luddy School of Informatics, Computing and Engineering, a fellow at the Institute of Electrical and Electronics Engineers and the American Association for the Advancement of Science, and a tenured professor at Indiana University at Bloomington. According to his employer, he has served as principal investigator on research projects totaling nearly $23 million over his 21 years there.

He has also co-authored scores of academic papers on a diverse range of research fields, including cryptography, systems security, and data privacy, including the protection of human genomic data. I have personally spoken to him on three occasions for articles here, here, and here.

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NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The discovery is one of the most significant findings in the search for evidence of past life on Mars. This is because, on Earth at least, relatively complex, long-chain carbon molecules are involved in biology. These molecules could actually be fragments of fatty acids, which are found in, for example, the membranes surrounding biological cells.

Scientists think that, if life ever emerged on Mars, it was probably microbial in nature. Because microbes are so small, it’s difficult to be definitive about any potential evidence for life found on Mars. Such evidence needs more powerful scientific instruments that are too large to be put on a rover.

The organic molecules found by Curiosity consist of carbon atoms linked in long chains, with other elements bonded to them, like hydrogen and oxygen. They come from a 3.7-billion-year-old rock dubbed Cumberland, encountered by the rover at a presumed dried-up lakebed in Mars’ Gale Crater. Scientists used the Sample Analysis at Mars (SAM) instrument on the NASA rover to make their discovery.

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The so-called Department of Government Efficiency (DOGE) is starting to put together a team to migrate the Social Security Administration’s (SSA) computer systems entirely off one of its oldest programming languages in a matter of months, potentially putting the integrity of the system—and the benefits on which tens of millions of Americans rely—at risk.

The project is being organized by Elon Musk lieutenant Steve Davis, multiple sources who were not given permission to talk to the media tell WIRED, and aims to migrate all SSA systems off COBOL, one of the first common business-oriented programming languages, and onto a more modern replacement like Java within a scheduled tight timeframe of a few months.

Under any circumstances, a migration of this size and scale would be a massive undertaking, experts tell WIRED, but the expedited deadline runs the risk of obstructing payments to the more than 65 million people in the US currently receiving Social Security benefits.

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ProPublica is a Pulitzer Prize-winning investigative newsroom. Sign up for The Big Story newsletter to receive stories like this one in your inbox.

Leaders at the Centers for Disease Control and Prevention ordered staff this week not to release their experts’ assessment that found the risk of catching measles is high in areas near outbreaks where vaccination rates are lagging, according to internal records reviewed by ProPublica.

In an aborted plan to roll out the news, the agency would have emphasized the importance of vaccinating people against the highly contagious and potentially deadly disease that has spread to 19 states, the records show.

A CDC spokesperson told ProPublica in a written statement that the agency decided against releasing the assessment “because it does not say anything that the public doesn’t already know.” She added that the CDC continues to recommend vaccines as “the best way to protect against measles.”

But what the nation’s top public health agency said next shows a shift in its long-standing messaging about vaccines, a sign that it may be falling in line under Health and Human Services Secretary Robert F. Kennedy Jr., a longtime critic of vaccines:

“The decision to vaccinate is a personal one,” the statement said, echoing a line from a column Kennedy wrote for the Fox News website. “People should consult with their healthcare provider to understand their options to get a vaccine and should be informed about the potential risks and benefits associated with vaccines.”

ProPublica shared the new CDC statement about personal choice and risk with Jennifer Nuzzo, director of the Pandemic Center at Brown University School of Public Health. To her, the shift in messaging, and the squelching of this routine announcement, is alarming.

“I’m a bit stunned by that language,” Nuzzo said. “No vaccine is without risk, but that makes it sound like it’s a very active coin toss of a decision. We’ve already had more cases of measles in 2025 than we had in 2024, and it’s spread to multiple states. It is not a coin toss at this point.”

For many years, the CDC hasn’t minced words on vaccines. It promoted them with confidence. One campaign was called “Get My Flu Shot.” The agency’s website told medical providers they play a critical role in helping parents choose vaccines for their children: “Instead of saying ‘What do you want to do about shots?,’ say ‘Your child needs three shots today.’”

Nuzzo wishes the CDC’s forecasters would put out more details of their data and evidence on the spread of measles, not less. “The growing scale and severity of this measles outbreak and the urgent need for more data to guide the response underscores why we need a fully staffed and functional CDC and more resources for state and local health departments,” she said.

Kennedy’s agency oversees the CDC and on Thursday announced it was poised to eliminate 2,400 jobs there.

When asked what role, if any, Kennedy played in the decision to not release the risk assessment, HHS’s communications director said the aborted announcement “was part of an ongoing process to improve communication processes—nothing more, nothing less.” The CDC, he reiterated, continues to recommend vaccination “as the best way to protect against measles.”

“Secretary Kennedy believes that the decision to vaccinate is a personal one and that people should consult with their healthcare provider to understand their options to get a vaccine,” Andrew G. Nixon said. “It is important that the American people have radical transparency and be informed to make personal healthcare decisions.”

Responding to questions about criticism of the decision among some CDC staff, Nixon wrote, “Some individuals at the CDC seem more interested in protecting their own status or agenda rather than aligning with this Administration and the true mission of public health.”

The CDC’s risk assessment was carried out by its Center for Forecasting and Outbreak Analytics, which relied, in part, on new disease data from the outbreak in Texas. The CDC created the center to address a major shortcoming laid bare during the COVID-19 pandemic. It functions like a National Weather Service for infectious diseases, harnessing data and expertise to predict the course of outbreaks like a meteorologist warns of storms.

Other risk assessments by the center have been posted by the CDC even though their conclusions might seem obvious.

In late February, for example, forecasters analyzing the spread of H5N1 bird flu said people who come “in contact with potentially infected animals or contaminated surfaces or fluids” faced a moderate to high risk of contracting the disease. The risk to the general US population, they said, was low.

In the case of the measles assessment, modelers at the center determined the risk of the disease for the general public in the US is low, but they found the risk is high in communities with low vaccination rates that are near outbreaks or share close social ties to those areas with outbreaks. The CDC had moderate confidence in the assessment, according to an internal Q&A that explained the findings. The agency, it said, lacks detailed data about the onset of the illness for all patients in West Texas and is still learning about the vaccination rates in affected communities as well as travel and social contact among those infected. (The H5N1 assessment was also made with moderate confidence.)

The internal plan to roll out the news of the forecast called for the expert physician who’s leading the CDC’s response to measles to be the chief spokesperson answering questions. “It is important to note that at local levels, vaccine coverage rates may vary considerably, and pockets of unvaccinated people can exist even in areas with high vaccination coverage overall,” the plan said. “The best way to protect against measles is to get the measles, mumps, and rubella (MMR) vaccine.”

This week, though, as the number of confirmed cases rose to 483, more than 30 agency staff were told in an email that after a discussion in the CDC director’s office, “leadership does not want to pursue putting this on the website.”

The cancellation was “not normal at all,” said a CDC staff member who spoke anonymously for fear of reprisal with layoffs looming. “I’ve never seen a rollout plan that was canceled at that far along in the process.”

Anxiety among CDC staff has been building over whether the agency will bend its public health messages to match those of Kennedy, a lawyer who founded an anti-vaccine group and referred clients to a law firm suing a vaccine manufacturer.

During Kennedy’s first week on the job, HHS halted the CDC campaign that encouraged people to get flu shots during a ferocious flu season. On the night that the Trump administration began firing probationary employees across the federal government, some key CDC flu webpages were taken down. Remnants of some of the campaign webpages were restored after NPR reported this.

But some at the agency felt like the new leadership had sent a message loud and clear: When next to nobody was paying attention, long-standing public health messages could be silenced.

On the day in February that the world learned that an unvaccinated child had died of measles in Texas, the first such death in the U.S. since 2015, the HHS secretary downplayed the seriousness of the outbreak. “We have measles outbreaks every year,” he said at a cabinet meeting with President Donald Trump.

In an interview on Fox News this month, Kennedy championed doctors in Texas who he said were treating measles with a steroid, an antibiotic and cod liver oil, a supplement that is high in vitamin A. “They’re seeing what they describe as almost miraculous and instantaneous recovery from that,” Kennedy said.

As parents near the outbreak in Texas stocked up on vitamin A supplements, doctors there raced to assure parents that only vaccination, not the vitamin, can prevent measles.

Still, the CDC added an entry on Vitamin A to its measles website for clinicians.

On Wednesday, CNN reported that several hospitalized children in Lubbock, Texas, had abnormal liver function, a likely sign of toxicity from too much vitamin A.

Texas health officials also said that the Trump administration’s decision to rescind $11 billion in pandemic-related grants across the country will hinder their ability to respond to the growing outbreak, according to The Texas Tribune.

Measles is among the most contagious diseases and can be dangerous. About 20 percent of unvaccinated people who get measles wind up in the hospital. And nearly 1 to 3 of every 1,000 children with measles will die from respiratory and neurologic complications. The virus can linger in the air for two hours after an infected person has left an area, and patients can spread measles before they even know they have it.

This week Amtrak said it was notifying customers that they may have been exposed to the disease this month when a passenger with measles rode one of its trains from New York City to Washington, DC.

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Elon Musk today said he has merged X and xAI in a deal that values the social network formerly known as Twitter at $33 billion. Musk purchased Twitter for $44 billion in 2022.

xAI acquired X "in an all-stock transaction. The combination values xAI at $80 billion and X at $33 billion ($45B less $12B debt)," Musk wrote on X today.

X and xAI were already collaborating, as xAI's Grok is trained on X posts. Grok is made available to X users, with paying subscribers getting higher usage limits and more features.

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Microsoft released a new Windows Insider build of Windows 11 to its experimental Dev Channel today, with a fairly extensive batch of new features and tweaks. But the most important one for enthusiasts and PC administrators is buried halfway down the list: This build removes a command prompt script called bypassnro, which up until now has been a relatively easy and reliable way to circumvent the otherwise mandatory Microsoft Account sign-in requirement on new Windows 11 PCs and fresh installs of Windows 11 on existing PCs.

Microsoft's Windows Insider Program lead Amanda Langowski and Principal Product Manager Brandon LeBlanc were clear that this change is considered a feature and not a bug.

"We’re removing the bypassnro.cmd script from the build to enhance security and user experience of Windows 11," Langowski and LeBlanc write in the post. "This change ensures that all users exit setup with internet connectivity and a Microsoft Account."

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One of the most frustrating things about using a large language model is dealing with its tendency to confabulate information, hallucinating answers that are not supported by its training data. From a human perspective, it can be hard to understand why these models don't simply say "I don't know" instead of making up some plausible-sounding nonsense.

Now, new research from Anthropic is exposing at least some of the inner neural network "circuitry" that helps an LLM decide when to take a stab at a (perhaps hallucinated) response versus when to refuse an answer in the first place. While human understanding of this internal LLM "decision" process is still rough, this kind of research could lead to better overall solutions for the AI confabulation problem.

In a groundbreaking paper last May, Anthropic used a system of sparse auto-encoders to help illuminate the groups of artificial neurons that are activated when the Claude LLM encounters internal concepts ranging from "Golden Gate Bridge" to "programming errors" (Anthropic calls these groupings "features," as we will in the remainder of this piece). Anthropic's newly published research this week expands on that previous work by tracing how these features can affect other neuron groups that represent computational decision "circuits" Claude follows in crafting its response.

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Imagine working with special cameras that capture light your eyes can't even see—ultraviolet rays that cause sunburn or infrared heat signatures that reveal hidden writing. Or perhaps using specialized cameras sensitive enough to distinguish subtle color variations in paint that look just right under specific lighting. Scientists and engineers do this every day—and the resulting data files are so large, they're drowning in it.

A new compression format called Spectral JPEG XL might finally solve this growing problem in scientific visualization and computer graphics. Researchers Alban Fichet and Christoph Peters of Intel Corporation detailed the format in a recent paper published in the Journal of Computer Graphics Techniques (JCGT). It tackles a serious bottleneck for industries working with these specialized images. These spectral files can contain 30, 100, or more data points per pixel, causing file sizes to balloon into multi-gigabyte territory—making them unwieldy to store and analyze.

When we think of digital images, we typically imagine files that store just three colors: red, green, and blue (RGB). This works well for everyday photos, but capturing the true color and behavior of light requires much more detail. Spectral images aim for this higher fidelity by recording light's intensity not just in broad RGB categories, but across dozens or even hundreds of narrow, specific wavelength bands. This detailed information primarily spans the visible spectrum and often extends into near-infrared and near-ultraviolet regions crucial for simulating how materials interact with light accurately.

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Since Trump took office on January 20, research funding from the National Institutes of Health has plummeted by more than $3 billion compared with the pace of funding in 2024, according to an analysis by The Washington Post.

By this time in March 2024, the NIH had awarded US researchers a total of $1.027 billion for new grants or competitive grant renewals. This year, the figure currently stands at about $400 million. Likewise, funding for renewals of existing grants without competition reached $4.5 billion by this time last year, but has only hit $2 billion this year. Together, this slowdown amounts to a 60 percent drop in grant support for a wide variety of research—from studies on cancer treatments, diabetes, and Alzheimer's to vaccines, mental health, transgender health, and more.

The NIH is the primary source of funding for biomedical research in the US. NIH grants support more than 300,000 scientists at more than 2,500 universities, medical schools, and other research organizations across all 50 states.

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Oracle isn’t commenting on recent reports that it has experienced two separate data breaches that have exposed sensitive personal information belonging to thousands of its customers.

The most recent data breach report, published Friday by Bleeping Computer, said that Oracle Health—a health care software-as-a-service business the company acquired in 2022—had learned in February that a threat actor accessed one of its servers and made off with patient data from US hospitals. Bleeping Computer said Oracle Health customers have received breach notifications that were printed on plain paper rather than official Oracle letterhead and were signed by Seema Verma, the executive vice president & GM of Oracle Health.

The other report of a data breach occurred eight days ago, when an anonymous person using the handle rose87168 published a sampling of what they said were 6 million records of authentication data belonging to Oracle Cloud customers. Rose87168 told Bleeping Computer that they had acquired the data a little more than a month earlier after exploiting a vulnerability that gave access to an Oracle Cloud server.

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Google acquired Nest in 2014 for a whopping $3.4 billion but seems increasingly uninterested in making smart home hardware. The company has just announced two of its home gadgets will be discontinued, one of which is quite popular. The Nest Protect smoke and carbon monoxide detector is a common fixture in homes, but Google says it has stopped manufacturing it. The less popular Nest x Yale smart lock is also getting the ax. There are replacements coming, but Google won't be making them.

Nest launched the 2nd gen Protect a year before it became part of Google. Like all smoke detectors, the Nest Protect comes with an expiration date. You're supposed to swap them out every 10 years, so some Nest users are already there. You will have to hurry if you want a new Protect. While they're in stock for the moment, Google won't manufacture any more. It's on sale for $119 on the Google Store for the time being.

Likewise, Google is done with the Nest x Yale smart lock, which it launched in 2018 to complement the Nest Secure home security system. This device requires a Thread-enabled hub, a role the Nest Secure served quite well. Now, you need a $70 Nest Connect to control this lock remotely. If you still want to grab the Nest x Yale smart lock, it's on sale for $229 while supplies last.

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The Federal Communications Commission's news distortion investigation into CBS drew a public rebuke from a bipartisan group of five former FCC commissioners, including two former chairmen.

The group criticizing current Chairman Brendan Carr includes Republican Alfred Sikes, the FCC chair from 1989 to 1993, and Democrat Tom Wheeler, the FCC chair from 2013 to 2017. They were joined by Republican Rachelle Chong, Democrat Ervin Duggan, and Democrat Gloria Tristani, all former commissioners.

"These comments are submitted to emphasize the unprecedented nature of this news distortion proceeding, and to express our strong concern that the Federal Communications Commission may be seeking to censor the news media in a manner antithetical to the First Amendment," the former chairs and commissioners told the FCC in a filing this week.

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More than half a year after an empty Starliner spacecraft safely landed in a New Mexico desert, NASA and Boeing still have not decided whether the vehicle's next flight will carry any astronauts.

In an update this week, the US space agency said it is still working through the process to certify Starliner for human missions. Whether it carries cargo or humans, Starliner's next flight will not occur until late this year or, more likely, sometime in 2026.

Two things stand out in the new information provided by NASA. First, there remains a lot of work left to do this year before Starliner will fly again, including extensive testing of the vehicle's propulsion system. And secondly, it is becoming clear that Starliner will only ever fly a handful of missions to the space station, if that, before the orbiting laboratory is retired.

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Google revealed the Pixel 9a last week, but its release plans were put on hold by a mysterious "component quality issue." Whatever that was, it's been worked out. Google now says its new budget smartphone will arrive as soon as April 10. The date varies by market, but the wait is almost over.

The first wave of 9a releases on April 10 will include the US, Canada, and the UK. On April 14, the Pixel 9a will arrive in Europe, launching in Germany, Spain, Italy, Ireland, France, Norway, Denmark, Sweden, Netherlands, Belgium, Austria, Portugal, Switzerland, Poland, Czechia, Romania, Hungary, Slovenia, Slovakia, Lithuania, Estonia, Latvia, and Finland. On April 16, the phone will come to Australia, India, Singapore, Taiwan, and Malaysia.

You may think that takes care of Google's launch commitments, but no—Japan still has no official launch date. That's a bit strange, as Japan is not a new addition to Google's list of supported regions. It's unclear if this has anything to do with the previous component issue. Google says only that the Japanese launch will happen "soon." Its statements about the delayed release were also vague, with representatives noting that the cause was a "passive component."

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As a society, we have decided to carry expensive electronic devices that are made out of glass. It's a real problem, especially if you have butter fingers. Gorilla Glass maker Corning has announced a new material that might help save the day the next time you drop a phone. The company claims its latest Gorilla Glass Ceramic can withstand drops that would shatter lesser materials.

As the name implies, Corning's new glass incorporates ceramic components to improve strength compared to other types of hardened glass. Corning has offered a bit of data to support this claim. In its lab tests (PDF), Gorilla Glass Ceramic withstood 10 drops from one meter onto surfaces that closely resemble asphalt. Why Corning does not use real asphalt for this test is unclear. Regardless, the company says an unspecified "competitive" type of aluminosilicate glass would typically fail on the first drop.

Chemically strengthened glass has been a key component in the proliferation of smartphones across the world. Since the company provided the glass for that first iPhone back in 2007, it has made glass for more than 7 billion devices. That makes Corning the largest glass supplier in the mobile industry, but it does face increasing competition in the budget and midrange segments.

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On Thursday, the Trump administration issued an executive order that took aim at one of the US's foremost cultural and scientific institutions: the Smithsonian. Upset by exhibits that reference the role of racism, sexism, and more in the nation's complicated past, the order tasks the vice president and a former insurance lawyer (?) with ensuring that the Smithsonian Institution is a "symbol of inspiration and American greatness"—a command that specifically includes the National Zoo.

But in the process of airing the administration's grievances, the document specifically calls out a Smithsonian display for accurately describing our current scientific understanding of race. That raises the prospect that the vice president will ultimately demand that the Smithsonian display scientifically inaccurate information.

The executive order, entitled "Restoring Truth And Sanity To American History," is filled with what has become a standard grievance: the accusation that, by recognizing the many cases where the US has not lived up to its founding ideals, institutions are attempting to "rewrite our nation's history." It specifically calls out discussions of historic racism, sexism, and oppression as undercutting the US's "unparalleled legacy of advancing liberty, individual rights, and human happiness."

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When Nintendo finally officially revealed the Switch 2 in January, one of our major unanswered questions concerned whether games designed for the original Switch would see some form of visual or performance enhancement when running on the backward-compatible Switch 2. Now, Nintendo-watchers are pointing to a fleeting mention of "Switch 2 Edition games" as a major hint that such enhancements are in the works for at least some original Switch games.

The completely new reference to "Switch 2 Edition games" comes from a Nintendo webpage discussing yesterday's newly announced Virtual Game Cards digital lending feature. In the fine print at the bottom of that page, Nintendo notes that "Nintendo Switch 2 exclusive games and Nintendo Switch 2 Edition games can only be loaded on a Nintendo Switch 2 system [emphasis added]."

The specific wording differentiating these "Switch 2 Edition" games from "Switch 2 exclusives" suggests a new category of game that is compatible with the original Switch but able to run with enhancements on the Switch 2. But it's currently unclear what Switch games will get "Switch 2 Edition" releases or how much developer work (if any) will be needed to create those new versions.

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