diplomatic community, the political community, foreign affairs community believes that right now iran is going to be in a position to adhere or support or live up to any agreement that is broached by the administration. they're biding time given what's going on economically in that their country. >> first of all, i would disagree with that. there are lots of people who believe that they have entered into a deal and can enter into a verifiable deal. >> that's not the same as honoring it three, four years from now. >> the question becomes then what are the -- >> why do you put that provision on the deal? >> right? >> why is the administration advocating a sunset provision on a deal like this? ten years out we're going to revisit this conversation about whether or not iran should have nukes. either they're allowed to have them now or they're not allowed them ten years from now? >> that's not the issue. the issue is it's not a question whether they're allowed to have nukes, the problem is they could be a signatory to the -- the cover of the npt allowance for