threat-intel Police Are Hiding Their Use of Flock Surveillance Cameras Iowa police are actively concealing their use of Flock license plate reader cameras, a system that tracks vehicle movements. This secrecy stems from a specific usage policy instructing officers not to disclose the cameras' presence to drivers, mirroring past practices with IMSI-catchers. Schneier on Security · Aug 20, 2026 Medium surveillanceprivacylicense-plates