That Jingle Jangle Jingle in Your Pocket Can Tell Tales

Where have you been and who has been glad to see you? Can the coins jingling in your pocket trace your movements? The Defense Department is warning its American contractor employees about a new espionage threat seemingly straight from Hollywood: It discovered Canadian coins with tiny radio frequency transmitters hidden inside. Collecting tons of data, these natl governments don't have a clue as to what to do with it...