From Pasadena, California to Lexington, Kentucky to Menasha, Wisconsin, to Newark, New Jersey, the surveillance company Flock Safety is blanketing American cities with dangerously powerful and unregulated automatic license plate recognition (ALPR) cameras. While license plate readers have been around for some time, Flock is the first to create a nationwide mass-surveillance system out of its customers’ cameras. Working with police departments, neighborhood watches, and other private customers, F...