tom cotton quoted kerry saying, so what exactly are you doing? rogane kerry, we're not negotiating a legally binding plan with iran. cotton said, if deal is not legally binding, then what's to keep iran from breaking said deal and developing a bomb. we'll start there with our panel. let's bring our panel. yogi dreason marra lyson and charles crowner. charles, we had this back and forth yesterday about legally binding but to hear the secretary of state say it was interesting. >> his admission is also an admission that the letter by the 47 senators would actually -- was important because we had never heard the administration say that before. so it elicited an admission that should have been made months and years ago, but on the substance of it the question is not whether it's binding on the iranians. the iranians have no use for international law anyway or treaties that they sign. that's why we have to presumably have heavy inspection and why the entire agreement is built around the idea of iran cheating breaking out and developing a bomb on its own. the