In August the American Civil Liberties filed a Freedom of Information lawsuit with the FBI seeking details of its of its surveillance policy — who it spies upon, how, and under what circumstances. The FBI sent back two 50+ page memos in reply, each totally blacked out except for some information on the title page.

The FOI suit came out of the Supreme Court’s January 2012 decision in U.S. v. Jones. Perhaps surprisingly, the normally conservative court held that Fourth Amendment protections against unlawful search and seizure apply whenever the government secretly attaches a GPS device to a car and tracks its movements.

According to their website, Congress is currently considering an ACLU-supported bill called the Geolocation Privacy and Surveillance Act (the GPS Act). It would require law enforcement to get a warrant to access a person’s location information through GPS or cell phone tracking. (You can click here to send a message asking Congress to support the GPS Act.).

Read more about the Supreme Court decision, the ACLU lawsuit and the GPS tracking memos here

Photo credit ACLU