for chemical attacks. but were you surprised that they laid back as they have? they didn't, apparently, take really active measures to try to stop the missiles or take any military response. >> well, look, i'm convinced the russians aren't excited about getting into a military engagement with the united states. that would be with catastrophic for them, it would certainly be very painful for us. they have limited objectives in syria, and they're not ready to go to total war with us over those limited objectives. i think that's obvious. paul: so how effective though are the russian missile defense radars in syria? because they've been delivering a lot more of those in the last couple of years. is that something that militarily if we went in in any future attack say, particularly with fighters, we'd have to disable those, i assume, or we could be in trouble. >> well, again, it depends on if they attempt to engage our assets that are going in there.