to prevent iran from becoming yet another nuclear power in the world. in fact, that was the direction it was going in. no one ever disputed that it was actually happening. we pulled out, arangua hard-line. the world has become more new color agitated. what is your level of concern about what is going on? both in iran and with the nuclear program. >> well, in a run, our withdrawal from the agreement in 2018 he has not had, in my view, any benefit. there is certainly many downsides. in particular, the agreement was constructed such that iran would be at least one year away, even if they went full load -- now they are probably weeks away from that. we have no evidence that they are in fact resuming nuclear weapons program at this time. on the other hand, they have enriched uranium.