With GPS Data Out, Feds Eye Warrantless Cell Phone Surveillance

Prosecutors are shifting their focus to warrantless cell-tower locational tracking of suspects in the wake of a Supreme Court ruling that law enforcement should acquire probable-cause warrants from judges to affix GPS devices to vehicles and monitor their every move, according to court records.
The change of strategy comes in the case the justices decided in January, when it reversed the life sentence of a District of Columbia area drug dealer, Antoine Jones, who was the subject of 28 days of warrantless GPS surveillance via a device the FBI secretly attached to his vehicle without a warrant. In the wake of Jones’ decision, the FBI has pulled the plug on 3,000 GPS tracking devices.
Read More: http://www.wired.com/threatlevel/2012/03/feds-move-to-cell-site-data/