and catastrophic, and we also know -- now, by looking at the parameters on the black boxes, what were the engines doing? were the flaps doing? what were the control surfaces and what were the pilot's inputs and what were the pilots saying to each other? that's why i think it's going to give very, very strong clues. >> you say 20 minutes into the flight, which is roughly when this all happened, that's a very unusual time for accidents, for crashes to take place. why is that? >> because it's known as in the cruise phase of flight, the early cruise phase of flight, and that's a very, very safe section of flight. the plane and the pilot are under the maximum stress at takeoff and landing, and if you look at statistics, about 40% to 50% are on landing, 30 odd percent are on takeoff, but only 8% to 9% of accidents are in the