City governments are relying more and more on a vast network of sensors to tell them what’s going on: stop light cameras, gunshot detectors, air quality sensors, license plate readers, automated toll booths, and much more. While these technologies can help the powers that be allocate precious resources and gain helpful insights, they can also lead to over-policing, chilling of free speech and mass warrantless surveillance. Today I’ll discuss the dangers of smart cities with Eleni Manis from the Surveillance Technology Oversight Project (STOP).

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