information, bill, that can be received from pieces of any kind. first of all if we find something and identify it as part of that aircraft which will be pretty simple to do. these parts are easy to identify. they have paint on the outside, the colors of which we already know. we also know that most of the aircraft parts, even the sheet metal parts are numbered with a 2 or 300 series part number. >> but that wouldn't tell us why it crashed, right? >> exactly, exactly right. we might be able to get some clues as to what happened. because you can tell us whether it is a convex or concave. it will give you a lot of information as to whether it was sudden, pushed out or in. you can also see debris, whether it was a carbon or explosion from the metal itself. the metallurgy scientists can just do unbelievable things with