An Explosion of Surveillance Towers is Coming to U.S. Borders, Costing Over $1 Billion

1 day 14 hours ago

A new report from the Government Accounting Office reveals that the Department of Homeland Security (DHS) plans to nearly triple the number of surveillance towers along U.S. borders, from the current 830 to 2,300 by 2034.

DHS expects to expend $1 billion in taxpayer dollars for this dangerous expansion of a surveillance network indiscriminately trained on towns, school playgrounds, backyards, and vehicles—threatening the privacy and civil liberties of everyone in the border regions.

The towers are planned as part of DHS component Customs and Border Protection’s (CBP) Integrated Surveillance Tower (IST) program, which captures images of people and vehicles. The IST program operates autonomous surveillance towers, consisting of autonomous surveillance towers, consisting of AI-based systems using radar, thermal infrared and optical systems to track targets over long distances; integrated fixed towers, optimized for surveilling foot traffic and vehicles; and remote video surveillance systems, which can often be found very close to the border fence in Arizona, including residential neighborhoods where cameras are capable of spying on homes on both sides of the border. (For a description and photos of these technologies, see EFF’s updated guide to surveillance at the U.S.-Mexico Border.)

DHS expects to purchase more long-range autonomous towers and to upgrade existing towers with autonomous capabilities. The $1 billion comes from the so-called One Big Beautiful Act—a massive tax and spending law that President Trump signed in 2025, the report says.

The explosive expansion of border surveillance is a digital dumpster fire for human rights and civil liberties. It’s not just surveillance towers; drones, aerostats, surveillance vehicles, ground sensors, game cameras, and license plate readers are also part of the vast taxpayer-funded infrastructure that threatens all those who live, work, or seek refuge in the borderlands. This technology isn’t exclusive to U.S. federal agencies: it’s also deployed by state and local law enforcement, and even by governments on the Mexican side.

Since 2022, EFF has studied and mapped surveillance technology along the U.S.-Mexico border using public records research, open-source intelligence, and fact-finding trips, and created a handy interactive map to provide researchers and journalists with the tools they need to analyze the impact of U.S. border security policy. We have also documented the different types of surveillance technology in a zine, "Surveillance Technology at the U.S.-Mexico Border." We updated the publication earlier this year to help people identify the machinery of homeland security by adding more models of surveillance towers, newly deployed military tech, and a gallery of disguised trail cams and automated license plate readers.

EFF’s work includes defending the rights of individuals whose devices have been searched or seized upon entering the country; pushing back on the collection of biometric and social media identifiers; and developing digital security guidance for people crossing borders.

With the web of surveillance tech at the borders about to explode, EFF will continue to investigate and expose it and find ways to fight back with the communities that live in the shadow of this technological threat to human rights.

Karen Gullo

“Stealth Crawlers” Are Not a Threat to the Open Web. Bills Targeting Them Would Be.

1 day 14 hours ago

There’s a new boogeyman in the battles over AI: so-called “stealth crawlers.” We’ll admit it—the term “stealth crawlers” sounds quite nefarious. In reality, they’re anything but.

“Stealth crawlers” are simply automated tools to access and collect public web data—without disclosing the user’s identity. Private crawlers like these facilitate all kinds of important work that benefits the public, including investigative reporting, academic research, cybersecurity protection, and more.

Anonymous crawling enables some of the most publicly beneficial uses of the open web.

Many publishers want to unmask crawlers anyways—and are pushing for new legislation that would give them new powers to do so. These legislative proposals threaten the open web, user privacy, and valuable research without directly addressing the problems they’re supposedly intending to solve.

Alarmingly, these harmful proposals are gaining traction. The New York state legislature has already passed such a bill, the NY Stealth Crawler Protection Act, which is now on Governor Hochul’s desk. We expect to see similar bills introduced in other states, and potentially in Congress. That’s a big problem for the open web—and the many benefits it provides.

Anonymous crawling is worth protecting

Anonymous crawling enables some of the most publicly beneficial uses of the open web. Researchers, journalists, and other watchdog groups use unidentified automated tools to gather the information necessary to hold powerful institutions accountable and protect the public.

Anonymous crawling fuels important investigative journalism. For example, The Markup, a non-profit news site, used anonymous crawlers to investigate potentially anti-competitive practices by tech companies, such as Amazon’s tendency to prioritize Amazon brands and Amazon-exclusive products over competitors with higher ratings. The crawlers identified themselves as ordinary Firefox browsers to web servers, which allowed The Markup to understand how Amazon search results pages would appear to ordinary users. Similarly, ProPublica used an automated tool designed to simulate an ordinary Amazon customer to reveal that the site steered shoppers to more expensive products over cheaper alternatives.

Anonymous web scraping is also crucial for cybersecurity professionals, who use automated tools to monitor the web for information that helps them protect against malicious attackers. Privacy tools, including EFF’s own Privacy Badger, also crawl sites anonymously to identify trackers without compromising user privacy.

However, without the ability to scrape anonymously, these tools would likely be blocked. Sites can—and do—block crawlers operated by researchers, journalists, and activists who criticize them. For example, Facebook shut down accounts belonging to researchers who used automated tools to study misinformation on the platform and demanded that they take down published research. Many sites block automated access by anyone who hasn’t paid to crawl public webpages.    

Unmasking crawlers threatens the open web

News publishers—and their allies in government—say that unmasking crawlers is necessary to protect news organizations from technological strain caused by AI-related crawling, and fears that AI could reduce news sites’ traffic and ad revenue. These are legitimate concerns.

But enacting broad, reactionary restrictions on automated access is not the answer. Legislation targeting anonymous crawling threatens the open web, user privacy, and valuable research without actually addressing these technological and potential economic harms of scraping.

The New York state legislature recently passed the NY Stealth Crawler Protection Act, a law that would make it illegal to crawl news websites without revealing who is operating the crawler and all possible future uses of the data collected by the crawler. The law would give websites the power to obtain court orders that unmask anyone using an unidentified crawler—without any evidence that they broke the law.

Laws like the New York bill sweep far beyond AI, and do not meaningfully address the technological or potential harms of AI-related web scraping. These policies would chill beneficial crawling by allowing publishers to veto lawful public access, giving them the power to block not just bad actors, but also security professionals, researchers, dissidents, or anyone who has not paid for a license to view public text. This needlessly undermines the free and open internet.

Digital news publishers—like most websites—face real technological challenges in the AI era. While web crawling has been around for decades, with the proliferation of AI, crawlers now collect far more public web data than they used to. This pushes servers closer to their maximum capacity, and if some bots collect information too aggressively, they may strain web servers to the point that it degrades site performance. The problem is not anonymity—so unmasking crawlers won’t solve it. The real problem is overaggressive crawling, which can be effectively addressed with technical measures that target harmful conduct without impeding anonymous access to information.

A better path forward

There are other, far less harmful ways to protect publishers from the harms these “stealth crawler” laws claim to target. Addressing the harms of AI-related crawling requires policies that narrowly target the causes of these issues–without undermining free expression and the open web. Policies that target crawlers and scrapers are anything but.

Tori Noble

【おすすめ本】打越 正行 『沖縄社会論 ――周縁と暴力』―底の底から見つめる 〈沖縄の現場〉レポート=鈴木 耕(編集者)

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JCJ

【オンライントーク】  AI・データセンターの急増と私たちの未来〜ゲスト: 明日香壽川さん(東北大学名誉教授)= 国際環境NGO FoE Japan

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[B] 「対人地雷禁止条約も反対のUSA]【西サハラ最新情報】  平田伊都子

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日刊ベリタ

Victory! Flock Ends Rollout of Audio “Distress Detection” of Human Voices

4 days 16 hours ago

Reversing course, Flock Safety—the surveillance technology vendor most known for its extensive network of automated license plate readershas announced that it will end a pilot for its acoustic gunshot detection devices to identify signs of “human distress.”

...public pressure can sometimes work to influence both companies and lawmakers that control a city’s purse strings to discontinue or divest from harmful products...

In October 2025, EFF warned the public that Flock was rolling out a new feature called “Distress Detection” that would be deployed through their acoustic gunshot detection devices (formerly known as Flock Raven, now called Audio Detection). This feature purported to use high-powered microphones scattered throughout a city to search for sounds of human distress, with original advertisements from the product indicating it would search for “screaming.” (Since the publication of our original blog post, Flock quietly amended the ad on this webpage to say “distress” instead of “screaming.”)

Now, Flock has published a blog post stating that “[a]fter careful consideration and community consultation, we decided to remove the feature.” Good riddance. 

We said it when the product was announced and we’ll say it again: this was a misguided and dangerous feature because of the civil liberties concerns it poses, the possibility it could summon armed police to every loud interaction happening on the street, and because in several places this type of spying would be illegal under state eavesdropping laws

We were not quiet about this potential new feature. Flock even mentioned our concern about Distress Detection in an attempt to rebut our opposition to the mass surveillance their products enable.

The suspension of Distress Detection, however, does not mean that these high-powered microphones are now magically safe or beyond our concern. Acoustic gunshot detection is still a dangerous and often highly inaccurate technology that has resulted in real world harm, as in Chicago where it resulted in police shooting at children lighting fireworks. As Flock itself states, “No acoustic system is perfect, and we don't claim otherwise.” But police response to a situation where they believe guns are actively in use seems like a pretty high-stakes situation to be making, selling, and deploying technology known to be imperfect. Flock’s devices also listen for more than just gunshots. Their marketing materials admit to be listening for “community disruption,” which includes “non-violent” threats like car sideshows and fireworks. 

Flock’s failed attempt to roll out Distress Detection teaches us a few important lessons about the current state of police surveillance. First, we should not assume that just because these companies are large and well-funded, that does not ensure that they are complying with local privacy laws before floating new products to customers. Second, companies roll out and police adopt invasive technology under the justification that it will be used to address our society’s very worst crimes. However, both the companies and police will leverage deployed surveillance infrastructure to introduce new uses without necessarily seeking the consent or approval of the public. Gunshot detecting microphones eventually being used to listen for screaming is exactly the type of mission creep that we’ve seen happen with other pieces of surveillance technology, including Flock’s license plate readers. Finally, gun violence is too serious and complex of an issue to purport to solve with one flawed piece of technology. It has become too easy for police and cities to listen to the fancy marketing pitches of tech companies claiming they’re going to solve all crime instead of doing the hard work of addressing the root causes of societal issues. And, in the meantime, that technology creates more problems and hazards for the communities they blanket in police surveillance. 

As we’ve also seen with people across the country pushing back on Flock license plate reader contracts in their communities, public pressure can sometimes work to influence both companies and lawmakers that control a city’s purse strings to discontinue or divest from harmful products. Flock’s decision to end “Distress Detection” for human voices is a win.  

Matthew Guariglia

Your Vision. Your Legacy. Your Future.

4 days 17 hours ago

This month, we celebrate 36 years of EFF and a mission that is bigger than any one of us. Thanks to EFF, communities around the world are demanding that technology protects their freedom, advances justice, and opens doors to opportunity. That's not a small thing—it's a life's work worth continuing.

If you are committed to staying on the cutting edge of digital rights issues, I'd like to invite you to consider taking that commitment one step further by joining EFF’s Lighthouse Society, our way to acknowledge and thank the community of supporters who are including EFF in their legacy plans.

Learn About the Lighthouse Society

By including EFF in your will or estate plans, you can ensure that EFF’s work and values don't just live beyond you; they thrive because of you. A legacy gift is one of the most powerful ways to say: This matters, and I want it to matter long after I'm gone.

Your gift will fuel our mission for generations by protecting freedom, advancing justice, and driving innovation for communities who need it most. There is still so much more to do, so much more to fight for. With your foresight, it can go so much further.

Planned giving is also more flexible than you might realize. A bequest in your will, a simple beneficiary designation, or another estate planning option can all make a profound difference, often without affecting your finances today.

Get in touch and learn more about what's possible with the Lighthouse Society. Reach out to Jocelyn Wicker at majorgifts@eff.org or fill out our online form to share your intention to give. Thank you for considering a legacy that will carry this work forward for years to come.

Jocelyn Wicker

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JCJ

How the Watch Dogs Video Game Series Mirrored and Predicted Real-World Digital Rights Issues

4 days 18 hours ago

When Ubisoft's Watch Dogs 2 was released in 2016, it was a headtrip for those of us working on digital-rights issues in the Bay Area. During the day, I'd fight tech-authoritarianism from EFF's San Francisco offices and then, at night, I'd fight tech-authoritarianism in an uncanny simulation of San Francisco from my home gaming console.  

Watch Dogs 2 is an open-world video game that follows a hacktivist collective called Dedsec as they take on surveillance tech and discriminatory AI systems that are being controlled by tech bros, government contractors, and corrupt cops. The game's missions often felt like they were ripped from the pages of EFF's Deeplinks blog.  

EFF’s mission is defending civil liberties in the digital world, and we do that with activists, technologists, and lawyers. If you've ever dreamt of joining Dedsec, you should definitely join us as a member.  

 Join the movement to Take Back CTRL.  

In fact, we've even got the same merch aesthetic. I cosplayed as the lead character, Marcus, at Dragon Con, and no one even knew I was in costume. 

Dave (left) as Marcus takes a selfie with a Wrench cosplayer at Dragon Con 2018.

To commemorate Watch Dog 2's 10th anniversary, I'll be speaking on a panel at San Diego Comic-Con reflecting on how the game predicted tech issues we're facing today. Organized by Mia Ginae of The Mighty Hostess and Black in Gaming, we've got voice actors Ruffin Prentiss lll and Shawn Baichoo, cinematic producer Timmy Fisher, and music producer Hudson Mohawke, who did the soundtrack, with Mia Ginae moderating. That's at 3:15 PM on Friday, July 24 in room 6BCF. 

But not everyone can get to Comic-Con and I certainly have more to say that can fit in. So here are a few ways where Watch Dogs 2 mirrored our work back then and foresaw what we're facing today.

Check out our full San Diego Comic Schedule, including panels and a meet-up. 

Insecure Surveillance Cameras 

One of the signature gameplay elements of the Watch Dogs series is the ability for your character to hack into nearby security cameras from your phone and use that to gain a strategic advantage over hostile adversaries. 

About a year before, that's exactly the issue that we were working on. EFF Technologist Cooper Quintin and I used the service Shodan to identify a slew of automated license plate readers (ALPRs) that Louisiana police had left unprotected on the internet. We found that the controls were open to anyone to manipulate and, just like in the game, you could watch the live video feeds.

We didn't use the data to acquire a skill point or collectible outfit. Instead, we forced police agencies to lock down their equipment and then used what we learned to persuade then Gov. Bobby Jindal to veto a bill that would have created a new statewide surveillance dragnet.  

This issue still persists today. Most recently, security researchers Benn Jordan and Jon “GainSec” Gaines, and the award-winning journalists at 404 Media, uncovered how at least 60 pan-tilt-zoom cameras from the vendor Flock Safety were left exposed online.

Cell-Site Simulators 

In Watch Dogs 2 there's a mission called "Stolen Signals," in which Marcus and his best friend Wrench are trying to locate "stingrays," police devices that gather nearby cell-phone data by masquerading as legit cellular towers. We call these "cell-site simulators" (CSSs) and they're are an extremely alarming mass surveillance technology that allows police to track individual users through their phone identifiers. We've long advocated that this should require a search warrant.   

Like Dedsec, we also had initiated a project to do the exact same thing. And in true Dedsec fashion, we also gave it a pop-culture name: Crocodile Hunter, an homage to wildlife expert Steve Irwin, who had famously died after a stingray attack.  

But while Marcus was running around Telegraph Hill, staff technologist Cooper Quintin and I were running around downtown San Francisco, testing out our own device for detecting suspicious cell phone towers during Salesforce's annual Dreamforce conference. And while we didn't find a CSS that day, we did find a mobile surveillance tower that a start-up had set up for the event.

Cooper Quintin, EFF's own 'Wrench,' testing out Crocodile Hunter at Dreamforce

Today, that project has evolved into Rayhunter, which allows anyone to use a cheap mobile hotspot to detect the type of cellular anomalies associated with CSSs. We're proud to say that now there's a whole international Dedsec-style network of researchers using this technology to look for surveillance at protests, at the border, and in metropolitan areas.  

Security Robots 

Throughout the game, Marcus encounters a number of autonomous pickle-shaped security robots wandering the city. At one point, Wrench reprograms one to become "Wrench Jr," a bona fide member of the Dedsec team.  

In real life, these robots are made by a company called Knightscope, and EFF started shining light on them in 2020-2021, when they were first being deployed by companies and government agencies.

A Knightscope robot patrols a casino parking lot in Reno, Nevada.

Today, law enforcement is pursuing weaponized robots and drones, and EFF is at the forefront to stop this dystopian reality. In fact, in December 2022, we successfully fought for San Francisco to ban the police department from weaponizing drones. In 2024, New York Police Department also retired its subway robot.

A Citywide Surveillance "Operating System" 

In the Watch Dog series, one of the ominous developments is CTOS 2.0 (Central Operating System 2.0). Through this system, Blume, a government contractor, tries to collect a massive amount of data through citywide sensors and infrastructure, and to combine all that data into one unified—and totally insecure—analytics system.  

At the time we'd only just begun to see this idea floated, with a limited number of cities trying tools like Palantir's Gotham to manage data.  

Today, it is a frighteningly competitive market, particularly when it comes to law enforcement surveillance. For example, both Axon and Flock Safety are trying to offer products that integrate with every function of policing that sound like CTOs. In fact, Flock Safety product is literally titled, "Flock OS."

Fusus demonstrated at a police chief's conference.

Meanwhile, Axon's camera networking product, "Fusus," sounds like it came straight from the Watch Dogs' writers room. Fusus allows for central live-streaming of all types of surveillance cameras in a city, including body-worn cameras, which was another prediction from the Watch Dog series that came true.  

EFF has been part of many local battles to reject Flock and Axon surveillance systems, and we've also advocated against recent efforts at the federal level to consolidate government data.  

Join the Fight Against Authoritarian Tech 

Watch Dogs 2's protagonists aren't just the merry band of core hackers: It's a distributed movement spread across the region and social media. The sequel, Watch Dogs Legion, is even designed so that every single person in the city of London is a potential playable Dedsec member, ready to take on tech tyranny with whatever skills they have.  

That's also our philosophy: If you use tech, if you're affected by tech, this is your fight. And it's time to take back control. 

There are a lot of ways to do this. You can become a member by donating. You can contact public officials through our Action Center. You can join the thousands of volunteers who are helping gather data on surveillance through our Atlas of Surveillance project. You can also hunt cell-site simulators with us—and help improve our code—through the Rayhunter project.  

And just like Watch Dogs 2, this is a game we can win if we work together.

Dave Maass