Supreme Court considering legality of smartphone location 'dragnets'

The US Supreme Court is hearing arguments about the legality of so-called geofence warrants, sometimes also referred to as “digital dragnets” because they capture the location data of a great many innocent citizens in addition to criminal suspects. In a practice raising obvious privacy concerns, tech giants are increasingly being asked by law enforcement to identify all of the smartphone users present at a particular location at the time a crime was committed … more…