devices that can test for radiological components. so in many cases, the airlines have these, and the pilots have then. there could be a u.s. marshal aboard that plane because obviously from yemen to chicago, that's something that we look at carefully. >> bob, let me just jump in, i'm going to add this additional report to bring in more information. we have yet to confirm this so i want to caution everybody on this but one report says the ups cargo flight from yemen to chicago that was stopped in london was found to contain a toner cartridge converted to a bomb. one other network is citing sources on that. we're working to confirm that. but that's the information as we know it. >> right. and you know, these bits and pieces of information as they come in, they have to be evaluated carefully. but clearly, there's something -- it seems as if something is going on here. for a pilot to confirm it, that means he's actually done some field test -- test and could see that there was something there, if, in fact, that's true. so you know, this is a very