>> and we know that european airliners that allow one pilot in the cockpit are already starting to change that process. you know, we have the voice recorder, which has revealed what the investigator has already said, what doomed this plane, believing the co-pilot did that. is there any other data, miles, that could be coming in if they find the flight data recorders or anything else that could help us get more information about the why and the how? >> you know, a couple things. first of all, the flight data recorder will be helpful because it will just corroborate, underscore what investigators have seen so plainly from the cockpit voice recorder. clearly of the two black boxes that was the more crucial one to get in this particular accident, but just to confirm what control