Let me put it this way.How fast does the bomber move? How deep does that bomb go? How many bombs and bombers is there? How many fancy Russian sams have they got? Have all Iranian bomb making sites been found? Look, i don't doubt that America could ruin Iran's day but i do doubt they can do a perfect clean sweep. Too much is working against the u.s for that to be possible. They also don't need hundreds of warheads to make attacking them suicide. If Iran want's nukes they will almost certainly get them and there is very little anyone can do about it fortunately/unfortunately.
He is right.