we're talking about pilots use of glasscock pit, fly-by-wire, airbus series, compared to fly by cable on the boeing series. pilots like to fly by cable because they can feel the aircraft better. they feel how it moves. aviate and 1/2 gaat better. fly-by-wire, cockpits sometimes they black out. this could happen here if we speculate. everything i'm say something speculation until we get the black boxes in place. that is a preference between the pilots of the insofar having recordings inside of the cockpit that is a good . mr. hall is suggesting because the more information we get, the better we know how to investigate these crashes. melissa: yes. >> more importantly real-time tracking of these aircraft is is very, very important to have this right now. i think there will be more movement in that right now. melissa: tom wants to jump in. >> one of the things you mentioned, the airbus is a very sophisticated plane an they will send out a master warnerring to the pilots if there is a decompression they will also send a signal to the ground to their operations center, and no word of that b