this point that this group isis in sinai could have pulled this off. >> we're hearing the tsa is looking at instigating new measures at the airports. what do you think the measures would entail? >> well, one of the things they'll be doing is looking at each individual piece, what i hope they're doing, and we've discussed this within the security communities lately, aviation security is, there is what we call approved shippers right now. they are able to put things onto airplanes without undergoing any security or screening of those packages. that is an extremely vulnerable area. that's what they're going to be stepping up and, again, it's fantastic. it's the fact they need to do it. they've been needing to do it. this will give them the reason to do it. >> interesting. >> absolutely. david, paul, great to see you guys as always. thank you. coming up for us, striking back. ben carson calls questions about his past a bunch of lies, a distraction and pathetic. but donald trump sure doesn't