Wall Street Journal: U.S. Spies on Millions of Cars

Wall Street Journal (subscription/registration required): U.S. Spies on Millions of Cars by Devlin Barrett:

The Justice Department has been building a national database to track in real time the movement of vehicles around the U.S., a secret domestic intelligence-gathering program that scans and stores hundreds of millions of records about motorists, according to current and former officials and government documents.