US virtual border wall fails to prevent hundreds of deaths

the us invested heavily in a virtual border wall with surveillance towers, including ai-powered ones, over 25 years, promising to detect and apprehend border crossers and save lives. however, an investigation by mit technology review documented hundreds of people who moved through areas watched by these towers without being reached or apprehended, and who ultimately died there. some deaths occurred under the watch of newly installed ai-powered towers designed to spot people automatically. this reveals a humanitarian crisis and repeated failures of the virtual wall's basic security promise, affecting migrants and challenging border security. the findings have sparked conversations about the failures of border surveillance technology.