. >> freorensically, can they determine it? >> they can if the bomb was located in the luggage and if you're lucky enough to get what was adjacent to that. most likely, that's not the case. because when a bomb explodes on a plane, the first material off the plane is always the most important and that tends to be further up the flight track so if you're in a large debris field, you're probably not going to see the first material off the plane. but you'll be able to see. you might be able to see whether there was fragmentation or pieces of shrapnel in the suitcases or in the human remains, there may be some indication. >> there could be important clues. take us through some of the challenges of finding the wreckage in the water, especially in this area in the mediterranean whether it's about 10,000 peopfeet above the surfa? >> it's a serious endeavor, wolf. if it's in the deepest part, we're talking about mounting a full blown deep water expedit n expedition. you have to have very sophisticated tools like robots, sophisticated se