FBI's 'Stingray' Cellphone Tracker Stirs a Fight Over Search Warrants, Fourth Amendment - WSJ: "Stingrays are one of several new technologies used by law enforcement to track people's locations, often without a search warrant. These techniques are driving a constitutional debate about whether the Fourth Amendment, which prohibits unreasonable searches and seizures, but which was written before the digital age, is keeping pace with the times.
"
'via Blog this'