aircraft and then you can reconstruct the last half hour the last two hours of the flight of that aircraft. you can sit in the simulator and watch what happened up to the time of impact. >> and mary skee yafo i want to get to you. i want to get to this headline in our continuing coverage of the search for qz8501. press conference out of jakarta by the main search and rescue agency there, leading this effort they believe, their early conjecture is that this plane is quote, on the bottom of the season. mary to you, again, we just -- you're so worried to say definitively that this happened because of all the misinformation we got after mh370 disappeared. what tells you they can be so sure of this? >> well, that they have