A vast network of over 117,000 surveillance cameras, primarily automated license plate readers (ALPRs), has been documented across the United States, raising alarms among privacy advocates and civil liberties groups about the potential for extensive tracking of individuals.

The interactive DeFlock heat map, compiled from public submissions and sources like OpenStreetMap, identifies concentrations of these cameras that photograph passing vehicles, recording their license plates, locations, dates, and times. California leads the nation with more than 16,000 documented readers, followed by Florida (7,169), Georgia (7,046), and Illinois (5,822).

Flock Safety systems account for nearly 83 percent of the documented cameras, totaling 97,077. The map includes cameras from 85 different brands, though it represents a snapshot rather than a complete inventory.

Privacy advocates warn that linking data from multiple locations can create detailed movement records for innocent Americans. Civil liberties organizations argue that interconnected cameras form a powerful national surveillance network accessible to law enforcement, often without warrants.

Flock Safety maintains that its ALPRs are not mass surveillance tools and do not track people or vehicles over time. The company states that most data is deleted on a set schedule and that concerns raised about misuse reflect isolated incidents. "Public safety does not need to come at the expense of community values," stated Garrett Langley, CEO and co-founder of Flock Safety.

Despite Flock Safety's assurances, a growing number of American communities are imposing restrictions or terminating contracts for the technology. Citing fears of warrantless surveillance and potential federal access to local data, more than 55 communities ended Flock contracts in the year preceding June, according to the American Civil Liberties Union.

Notable examples include Dayton, Ohio, which canceled its agreement after uncovering over 7,000 immigration-related searches by outside entities. Eugene, Oregon, deactivated its cameras due to public opposition and concerns about federal agencies using the data for immigration enforcement or monitoring activists. Syracuse, New York, removed its readers over worries about personal information collection and inappropriate sharing, though the city is reportedly seeking a new provider.

In California, Mountain View discontinued its Flock network after federal agencies accessed vehicle information without authorization. Santa Cruz and Los Altos Hills also ended agreements over immigration enforcement and data control concerns. Cambridge, Massachusetts, terminated its contract after Flock technicians installed cameras without the city's knowledge, which officials deemed a "material breach" of trust.

Minnesota cities Brooklyn Park and Columbia Heights, along with Windsor, Connecticut, have also ended their agreements due to data access issues and privacy concerns. Killingworth, Connecticut, cited public opposition and the cameras' limited value to local policing.

Some jurisdictions are opting for more regulated use. Troy, New York, established new rules restricting data sharing with outside agencies and expressly prohibiting immigration enforcement use, requiring annual audits for oversight.

While Flock Safety disputes claims of widespread misuse, emphasizing transparency and accountability, the ongoing debate highlights tensions between public safety initiatives and civil liberties in an era of increasing surveillance technology.