subway gassings in tokyo they used a particular kind of weapon that had two plastic bags full of chemicals and those together mixed to create a concoction. they will have to do a careful search through all the bags, all the planes, because it s a chemical threat and not a bomb, the explosive dogs, the bomb dogs, may not be as much help as they ordinary would. the passengers on the planes are in for a rather long day as they will have to search literally everything on the plane. absolutely. and those are reports that it is a chemical weapons threat, not necessarily confirmed yet by our sources. everyone is looking into it at this point. if it would be, if that would be the nature of the threat, a chemical weapons threat, that seems more unusual than what you normally hear if you will on these in terms of a threat to planes. as you point out, these threats come in so often, what does this then mean for the other part of this investigation trying to track down who tipped off law enfor