Watch Air Crash Investigation: Special Report Season 2 Episode 9 Online

Radio silence between pilots and air traffic controllers can mean many different things, but only the physical evidence can reveal the true story. Three shocking cases send investigators hunting for answers. A Greek airliner goes rogue and crashes outside Athens. A China Airlines 747 disappears from radar and the culprit is discovered on the ocean floor. And, when controllers lose contact with a private jet, fighter planes scramble to intervene.