If Americans aren’t disturbed by phone carriers’ practices of handing over cell phone users’ personal data to law enforcement en masse–in many cases without a warrant–we might at least be interested to learn just how much that service is costing us in tax dollars: often hundreds or thousands per individual snooped.

Earlier this week the American Civil Liberties Union revealed a trove of documents it had obtained through Freedom of Information Requests to more than 200 police departments around the country. They show a pattern of police tracking cell phone locations and gathering other data like call logs without warrants, using devices that impersonate cell towers to intercept cellular signals, and encouraging officers to refrain from speaking about cell-tracking technology to the public, all detailed in a New York Times story.

via These Are The Prices AT&T, Verizon and Sprint Charge For Cellphone Wiretaps – Forbes.