since 11 this morning. >> it's tough to go that long and he's a fighter and doing everything he can to make his point. >> greta: what is the point, what does he want? >> what he wants is assurance from this administration, from president obama to the effect that he will not authorize any lethal drone strikes on american citizens on u.s. soil. >> greta: and has the administration said that they might or maybe or won't or what's the administration's response been? >> well, the administration so far has been to give a series of somewhat ambiguous answers, answers that don't get to the heart of the matter. answers to the effect, well, we probably won't do that, or we might not do it and it doesn't seem likely that we'll do it, but maybe we will, under certain circumstances and that has made senator paul nervous, so much so that he has felt the need to continue this protest through this lengthy filibuster. >> greta: you've gotten into it and i understand you like the word imminent the way-- >> the way it's used in the