from tom costello from last year. that was ten days after flight 370 disappeared. with so many people on board, with no satisfaction explanation for what happened or why, everybody has figured all along from the moment it was first lost, everybody has figured that the wreckage of the plane would explain it. that when we found the wreckage of the plane, that would be our best home. our only hope of understanding what happened here. a lot of countries join in the hunt for the wreckage including the u.s. they searched for flight 370 with planes and shipments. they searched for it with robotic submersible that's are capable of combing the sea beds for any signs of the lost plane. because of the electronic signal that's continued after the pilot said good night, because of what the track was, the search effort has focused here. you see on the screen. the big vast stretches of very, very deem water off the coast of australia. they've been dragging six-mile