from the black boxes yet, but could have emergency locator transmitter information, they could have information from satellite surveillance. certainly there was a lot of searching for that in 370. i think they must have additional coordinates. and then it s possible talking to anyone who could have seen or heard something, they also might have people near the scene, near where they think it is at the bottom of the sea who have seen something. mary, stand by. thank you for your expertise. don t go anywhere. let me bring in our other experts, tim taylor a specialist in underwater search and ken christiansen joins us again, who has done extensive work with the u.s. government. let me go first to you, ken. given now that the main search and rescue agency in indonesia leading this effort says they believe that this plane, quote,