including aircraft to safe locations and my guess one of the reasons we've waited is so that the russians would have an opportunity to move their stuff away. but probably air bases near damascus and helicopters in particular. >> when the president used the word "sustained" to talk about this response, did that say anything to you about the scope of this campaign or how long it might last? >> yeah, we've been talking about that for some time in discussions with other people who've been looking at it come to the same conclusion. you remember back in april when we launched the attacks with the 59 cruise missiles, that was a one-shot deal. it was pretty much toward one target. and trump telegraphed what he was going to do a couple of days ago when he was discussing it in public. what you're probably going to have here are several days' worth of attacks and multiple targets that we've picked out that the defense department has