that has the towed pinger behind it. that can locate this thing at least in my estimation as far as the debris is concerned, maybe a couple more airplanes. >> michael kay, les abend, stick around. we are waiting for a news conference from the head of the search effort at the bottom of the hour. in the meantime our coverage continues. nic robertson is in kuala lumpur where a new group has heard the air traffic control conversations. good evening to you, nick. . >> friends and colleagues of the first officer and the captain on board. which one of the two was the one who was last to communicate with the air traffic controllers is key in the investigation. more after this break. can be. w painfuln for fast, long lasting relief, use doctor recommended gaviscon®.