out, what other parts of the plane from your experience and vast experience in this area, what other parts do you think would still be floating? >> well, in the case of air france 447, where there was a lot of debris on the surface, many of those floating things were, in fact, control surfaces like bits of the flap and from the main wings and the tail section of the plane. similar items would be floating. on the other hand, many items like the galley from inside the aircraft were floating as well. it all depends how light it is and how well it's able to keep water out. >> all the focus now still in the water. the focus in that lab in france to figure out what they can learn from that flaperon. thank you. it's great to see you. for us next, cnn is learning that bill clinton called donald trump. they spoke on the phone just before donald trump announced his run for president.