we don t know that. they will be scrutinizing that part of the cvr tape, as for the fdr they will look for unusual parameters as to what the airplane was doing just prior to the event and most likely, they lost the event when the airplane came apart. on the ground, of course, they will be looking now two-fold. one for a mechanical malfunction or failure that could have led to the destruction of this airplane, and then looking at the curious things. there are some pictures floating around on the internet right now that show what is presumed to be shrapnel holes. we saw that in twa 800 when the fuel tank exploded. so you can t really draw any conclusions whether this is a technical issue or some sort of explosive device. the investigators have a lot of scrutinizing to do of the wreckage that is still out there. thanks so much. i m joined now by congressman mike mccall, chairman of the homeland security committee. congressman, have you all been briefed about the suspicions that isis was