>> martha: yeah, it is a tragedy. you know, there's been a phrase that i keep hearing in these statements from the white house and the state department and the pentagon, "as many as we can." i think the bar has been lowered. you know, we're going to see how many people that they can get out by the 31st. clearly general mckenzie has been cleared to keep going with the evacuations and to continue to pull out. when you look at this as a former -- a retired navy seal, do you have thoughts on a better way to do this, on a better way to run this operation to get these people out safely? >> i don't have a better way to run it tactically at the airport. what those guys are doing there, they are making all the right moves. they're constrained by the strategy of having a choke point. we're going to have one base, geographically located where the enemy knows it is and set a time