The NSA says it stopped tracking cellphone locations without a warrant

Last year the Supreme Court ruled, in a 5-4 decision, that a search warrant is required for law enforcement to perform cellphone tower searches to track someone’s location.

A letter sent by the Office of the Director of National Intelligence (ODNI) to Senator Ron Wyden affirming that ever since that Carpenter decision, the “Intelligence community” has not sought cell-site location data or GPS records without a warrant.

Source: The NSA says it stopped tracking cellphone locations without a warrant | Engadget