No Cars Go

"The DEA program collects data about vehicle movements, including time, direction and location, from high-tech cameras placed strategically on major highways. Many devices also record visual images of drivers and passengers, which are sometimes clear enough for investigators to confirm identities, according to DEA documents and people familiar with the program.

The documents show that the DEA also uses license-plate readers operated by state, local and federal law-enforcement agencies to feed into its own network and create a far-reaching, constantly updating database of electronic eyes scanning traffic on the roads to steer police toward suspects.

The law-enforcement scanners are different from those used to collect tolls.

By 2011, the DEA had about 100 cameras feeding into the database, the documents show. On Interstate 95 in New Jersey, license-plate readers feed data to the DEA—giving law-enforcement personnel around the country the ability to search for a suspect vehicle on one of the country’s busiest highways. One undated internal document shows the program also gathers data from license-plate readers in Florida and Georgia.

“Any database that collects detailed location information about Americans not suspected of crimes raises very serious privacy questions,’’ said Jay Stanley, a senior policy analyst at the ACLU. “It’s unconscionable that technology with such far-reaching potential would be deployed in such secrecy. People might disagree about exactly how we should use such powerful surveillance technologies, but it should be democratically decided, it shouldn’t be done in secret.’’

- Devlin Barrett, U.S. Spies on Millions of Drivers, Wall Street Journal