Stockpile of enriched uranium will also help because it will mean since it will give them a head start of enriching bomb material that's about two-thirds of the work already done, then a covert site, without that material, would have to be almost three times as big or take almost three times as long making it easier to detect. >> well -- >> overall, this deal gives us quite a lot on hemming in iran's nuclear program. >> professor, we're getting close to a -- you were getting close to a very specific response and effect to a major republican talking point today about being able to see -- check ...