. >> actually, rafi was asking my question i was going to ask. i think there's a fundamental difference in how they're looking at when the united states says it will prevent iran from getting a nuclear weapon. i think they've hidden, the administration has hidden behind the concept of when they actually start building the weapon. and i think this will be a major issue in the talks between netanyahu and the president. >> all right. both you gentleman. of dennis and then -- all right. >> look, i think to get to maury's point, look, i think israel has a two-pronged fear which is if they go above 20% and say within 30, 40 days can get weapons-grade fuel and 90% enrichment, they'll ask two questions; will you know it in time, and will you act on what you know? and that i don't think they feel they've gotten satisfactory answers. i'm sure, again, i have no doubt there's a strategic convergence between the united states and israel. nobody wants iran to get a bomb. that's a given. the question is more on the policy level which is how will you know it in