spent fuel to the united states and mexico will have a new reactor which will use low-enriched uranium. it's renewable, not so damaging to the environment. in one sense, of carbon emissions at least. this is an important agreement. not quite as big as ukraine and iran what we think about what china announced, too, but still, an important step. >> the summit isn't driven by some cent incident or the polls. he's using his bully pulpit pursuing an issue he's concerned about. i imagine this has been on his plate for a long time now. >> yes, one of his pet projects. this has been a wonkish concern of senators, lugar and senator obama. one of few substantial achievements obama had in the senate. a successor to the first round to dispose of these kinds of