The ACLU and EFF are suing San Jose, California, arguing its network of nearly 500 Flock Safety license plate readers constitutes an unconstitutional mass surveillance system. The lawsuit, filed on behalf of civil rights groups, claims the program creates an unavoidable database of residents’ movements, violating state privacy laws. Unlike many agencies, San Jose retains location data for a full year, creating a detailed historical record of travel. The city’s system tracked over 2.6 million vehicles in a single month, with cameras positioned near sensitive locations like clinics and places of worship. This legal challenge seeks to force police to obtain a warrant before searching the vast troves of collected location data, asserting a check on warrantless surveillance.