https://www.wired.com/story/delicate-ethics-facial-recognition-schools/

On a steamy evening in May, 9,000 people filled Stingaree Stadium at Texas City High School for graduation night. A rainstorm delayed ceremonies by a half-hour, but the school district’s facial recognition system didn’t miss a beat. Cameras positioned along the fenceline allowed algorithms to check every face that walked in the gate.

As the stadium filled with families, security staff in the press box received a notification that the system had spotted someone on their watchlist. It was a boy who had been expelled from the district and sent to a county disciplinary school, whose pupils are barred by district rules from visiting other campuses.