destroyers in the mediterranean. is that a threatening maneuver, or is it routine and certain stances like this? >> i don't consider it a threatening maneuver. it is something that russia has to do and something that can make the international news like it is making today. but you can be assured, and we can all be assured that we have for protection that our navy needs out there in the mix. there is no threat to the u.s. from the russian ship. >> jon: what about the fact that russian forces were not to be on the ground at this airfield, and we are told pentagon actually notified the russians about an hour before the attack. frankly, that surprises me because the russians could have been picked up the phone and called the syrians coming in they could have flown their planes out of there in that hour. >> we can probably assess that is exactly what happened. the russian advisors, the russian chemical munitions experts, if that is what they were, certainly told their syrian counterparts. it is hard to find a syrian jet