Democrats Question Border Patrol License Plate Surveillance

Several Democratic lawmakers have raised serious concerns about the constitutionality of a U.S. Border Patrol program that uses license plate readers to monitor and flag the travel patterns of millions of drivers across the country, potentially leading to unwarranted stops and detentions.

The program, operated by U.S. Customs and Border Protection, employs a network of cameras to scan and record vehicle license plates nationwide. An algorithm then analyzes the data, identifying vehicles as suspicious based on factors such as origin, destination and route. In some cases, the cameras are concealed within standard traffic equipment. Border Patrol agents access plate information from federal, state, local law enforcement and private companies. When a vehicle is flagged, agents may alert local police, who conduct traffic stops on pretexts like speeding or improper lane changes, resulting in searches and, occasionally, arrests.

The initiative has operated under administrations of both major parties and aims to detect threats and dismantle criminal networks, according to agency statements. However, an investigation revealed its broad scope, raising questions about its impact on...