a. flight crash some two years ago. the crash at the time was a mystery. a, how did they finds the wreckage and, b, what did they find? >> they found the wreckage by widening the area to 10,000 square kilometers and going down deep, as much as 10,000 feet using three remote controlled submarine drones. they were able to look at the bottom of the ocean, take thousands of pictures and then, of course, compare to see where the ocean was and whether there was any debris down there. finally they did realize that they found debris field described as small and compact but they found the engines of the aircraft, they found parts of the fuselage and, of course, bodies of those who were on board. now, what they haven't found yet was the black box, the flight data recorders, cockpit data recorders, those instruments,