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The Download: investigating deaths at the US border’s “virtual wall”

Thomas Macaulay· 21 septembre 2026
The Download: investigating deaths at the US border’s “virtual wall”

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. The US spent billions on border surveillance. Why can’t it catch people before they die? When José Morales Bernal crossed the border into the US in April 2024, t…

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US border surveillance costs

The US government has invested billions of dollars in a high-tech system along its border with Mexico, often called the 'virtual wall'.

This system includes nearly 600 surveillance towers equipped with cameras and artificial intelligence (AI) designed to automatically detect and track people crossing the border.

The towers are part of a broader effort to monitor and secure the border without relying solely on physical barriers.

Despite this investment, the system has repeatedly failed to prevent deaths, as shown in a recent investigation by MIT Technology Review.

The investigation found that at least 138 cases since 2022 involved migrants whose remains were discovered within the range of a nearby surveillance tower, meaning they were likely visible to the system when they died.

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