Flock Safety's AI-powered license plate readers, now over 100,000 strong in more than 6,000 communities, capture vehicle details to help police solve crimes like stolen cars and missing persons cases. Critics from the ACLU to libertarians call them mass surveillance without warrants, sparking vandalism in places like Houston, California, Virginia, Texas, and Georgia. The company defends the tech as a crime deterrent with privacy features like no facial recognition, but pushback grows—highlighted by LAPD letting its contract expire and calls like Texas Rep. Keith Self's 'DEFLOCK AMERICA.'