ACLU: Most police track phones’ locations without warrants – CNN.com

…. the American Civil Liberties Union shows that phone location tracking has also become a surprisingly common tool of law-enforcement investigations — with, but often without, a warrant.The ACLU recently obtained records from over 200 police departments and other law enforcement agencies around the U.S. They found that “virtually all” of these agencies track the location of cell phones with data supplied by wireless carriers… via ACLU: Most police track phones’ locations without warrants – CNN.com.