reactor, producing plutonium for a weapon. and it won't buildfully new heavy water reactors or engage in reprocessing for at least 15 years and after that, we have the ability to watch and know precisely what they're doing. the iranian pathway will be blocked. because of the deep reductions in iran's uranium enrichment capacity and because for 15 years the country will not enrich to a level higher than 3.7%. let me be clear, no one can build a bomb from a stockpile of 300 kilograms of uranium enriched only to 3.67%. it is just not possible. finally, iran's covert's pathway to a bomb will -- >> you're watching secretary of state john kerry speaking at the national constitution center in philadelphia speaking in support of the iran nuclear deal