FBI Tracked Michael Cohen's Phones with Controversial Device

News Civil liberties and privacy groups have been objecting to the suitcase-sized devices, sometimes known as StingRays or Hailstorms, which act like a cell tower and often connect to cellphones other than the person being tracked. Police departments and federal agencies have been using them in relative secrecy for nearly three decades. Contributed Author: Michael R. Sisak, Associated Press Topics: Devices