The Drug Enforcement Agency (DEA) has been secretly recording the license plates of millions of motorists and storing the info in a national database built by the Department of Justice, the Wall Street Journal reported on Monday.
The system works by using cameras along roadsides that sometimes not only capture license plate numbers, but also the faces of drivers.
Authorities have previously said publicly the project was focused on areas close to the Mexican border to help with the apprehension of drug smugglers. It may have started that way, but expanded later.
