the most vulnerable to ambush an attack. the syrian road network is not secure. it's neither secure physically because it's been heavily damaged in some parts and you've got the rebel forces operating along it. the weapons themselves are also dangerous. it's quite common to have leakers and all it takes is a truck turning over and you've got a chemical weapons accident on your hands. >> aren't they separate chemicals? and it's only when they're combined together that there's lethality? >> these are the binaries and that's not all of them. he's got mustard, which is not a binary. and he's preloaded some of his strategic weapons everyone thinks. so i don't know what he's moving. and i don't think anyone does. the critical question right now is to find out from where to where, but i agree, look, the optics of this is horrible. this is a regime you never use trust, trust and verify, you never use trust because he's lied so often that no one does believe his word.