into that maybe when the door opened when one of them came out to use the restroom someone else could have gotten into the cockpit. that's unknown at this point. we have not heard what conversations took place in that cockpit. >> it's interesting, the french president francois hollande said today they are looking at the interior trying to find the interior of the flight data recorder. this is a flight data recorder. the outside, they apparently found the shell of it but haven't found the important stuff that's inside. how unusual is that? >> it is unusual. these data recorders as you see are very well armored. they are put together to with withstand extraordinary destructive forces. i think it's indicative of how hard this plane hit the ground that the outside casing it's a quarter of an inch of solid stainless steel plus insulation. if that's been breached i think there's going to be a challenge to find the recorder. the actual computer chips that