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She died at the San Diego border. A surveillance camera was in plain sight

MIT Technology Review Lillian Perlmutter Covered by 3 sources

A woman died just a mile from San Diego’s border wall, under a camera tower in plain sight. The border is packed with AI surveillance, but migrants still keep dying there.

Based on reporting by MIT Technology Review, Lillian Perlmutter — read the original for the full story.

Summary, retelling and take written by AI under human oversight; images are AI-generated illustrations. How we work · Report an error

Graciela Gómez Hernández crossed into Southern California on the afternoon of Sept. 14, 2025, after telling her mother and sister she was on the move. She had planned the trip in secret until the day before. Her goal was simple and brutal: find work, send money home, and help support three children and her parents in southern Mexico. Her oldest son wanted a bicycle. Instead, she ended up lost in the Otay Mountain Wilderness, where the border is watched by helicopters, trucks, towers, radar and cameras built to spot movement from far away.

By the time her family got her final message, she sounded spent. Two weeks later, when a forensic crew finally came for her, most of her body had already vanished into the earth. She died alone, but not out of view. A General Dynamics surveillance tower was watching from a nearby hilltop. Its electro-optical and infrared cameras can track targets 5 to 7 miles away. Gómez Hernández was about a mile from it. Another tower stood nearby too, and the whole area sits inside one of the most heavily monitored stretches of land on the border.

That is the nasty contradiction at the center of this story. A Times of San Diego analysis found hundreds of cases along the California border where migrant remains were discovered within range of the very cameras meant to help Border Patrol track people. At least 138 of those cases came in the past four years. An MIT Technology Review topographical analysis found that more than half of those remains were located where a camera would have had a clear line of sight. Some deaths were sudden. Many were slow: heat, cold, dehydration, exposure. And they were not limited to one nationality or one age. People from Brazil, Mexico and elsewhere died there, including children and older adults.

The surveillance footprint keeps growing. More than 120 towers now stand along the California border, according to documents and live observations collected by the Electronic Frontier Foundation. The wider system also includes trail cameras, underground movement detectors, radar, infrared sensors, drones, blimps and, since a March 2025 directive from the Trump administration, satellites. Officials say the towers are good at tracking migrants. Anduril says they have helped save lives and stop drugs. But the report leaves a much uglier possibility hanging in the air: either the system missed people in distress, or it saw them and nobody came.

Gómez Hernández’s last movements were tracked by a phone ping shared with smugglers, not by the surveillance state all around her. By midafternoon she told her family she was too tired to continue. In that terrain, with heat rising and water running out, that can be enough. The border did not just fail her. It watched her fail.

My take — AI-written commentary, not fact-checked reporting

This is what border tech always turns into: expensive optics, confident press releases, and a lot of dead people underneath the hardware. The country keeps buying smarter cameras while the basic human job — spotting distress and sending help — stays mysteriously optional. That’s not security. That’s a very costly way to look busy.

Read more about this at: MIT Technology Review

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