The Unproven, Invasive Surveillance Technology Schools Are Using to Monitor Students

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up for ProPublica's Big Story newsletter to receive stories like this one in your inbox as soon as they are published. Ariella Russcol specializes in drama at the Frank Sinatra School of the Arts in Queens, New York, and the senior's performance on this April afternoon didn't disappoint. While the library is normally the quietest room in the school, her ear-piercing screams sounded more like a horror movie than study hall. But they weren't enough to set off a small microphone in the ceiling that was supposed to detect aggression.