Government Challenged Over GPS Tracking

Even as the Sixth Circuit says no warrant is needed to follow cell phone GPS signals, civil liberties groups beg to differ

San Francisco - A federal district court is poised to determine whether the government can use cell phone data obtained without a warrant to establish an individual's location. In an amicus brief filed Monday, the Electronic Frontier Foundation (EFF) and the Center for Democracy & Technology (CDT) argue that this form of surveillance is just as unconstitutional as the warrantless GPS tracking the U.S. Supreme Court already shot down in this case.