at the difference between iran and north korea and kelly sattler. i can't say i'm an expert on this but, clearly, secretary aids are said that a lot of this can be done by executive action. and as we know, congress gets nothing done these days. >> i thought it was interesting when they were trying to get definitions on denuclearization. one of the points has always been the united states definition is very broad. unfettered access, closing down enrichment, complete denuclearization. talking about that has been very much in question and john roberts just made that tear the house down that you just built analogy. >> there is no question that will be one of the key issues at the summit, what is the