the prime minister's office itself. that lends some credibility, as you know, because the british are generally reticent to fan public concern or hysteria. and the second sourcing coming from the u.s. government about the concerns it may have been a bomb. number two, to speak to how this investigate is going to go, and we discussed a moment ago, the multi national parties involved here, but to look for signs of a bomb, they'll clearly be looking for explosive residue, but also they will look for any pitting or pock marks on the aircraft fuselage, any of those tell tale signs of a bomb. also, there's a chemical change in the metal they can detect that will give them a sense of whether it was an explosive. and if there was an explosive, did it explode from the inside out and if so, from what portion of the aircraft did it occur? was it the fuselage, the fuel tank, the rear of the plane? all of that will be telling to them. even more important, to really underscore this entire