taking place a little too early. we've got on the phone with us right now mary schiavo formerly of the u.s. department of aviation, so, mary, this is an incredible sight that we're seeing right here. so many eyewitness accounts of what may have happened as this boeing 777, this aviation expert we just talked to said this is one of the more safer planes out there and that this accident would happen. what's the first thing at hand for investigators to piece together what happened, how, and why? >> well, they will have a tremendous amount of information from two recordings from the cockpit voice recording and from the tower recording and also the air traffic controllers were supposed to have eyes on that plane. so, they will have a tremendous amount of information. but i think jim tillmon's right, i think for them to come in, san francisco is -- you know, there are winds and all that sort of thing but the 777 is a very heavy, reliable plane, you know, tens of thousands of planes land in san francisco every year, so