"....and now if there's a strike it will very likely have to involve nuclear bunker-busters at that location anyway, probably a succession of them"
While that's a possibility, it's highly unlikely that we'll use those types of weapons on suspected Iranian nuclear facilities (or any suspected "enemy" facility on planet Earth, for that matter).
There are other bombs at our disposal that we could use instead...some of which contain inert cores. Such munitions are very dense and can penetrate bunkers deep underground with the same amount of force as a weapon with an active explosive.
Anyway, I seriously doubt the Obama Administration will use nuclear weapons on suspected Iranian facilities. The negative political ramifications would be too great, ditto for the environmental/social ramifications.
FYI, using nuclear weapons against Iran would enable them to rigorously develop a nuclear bomb in return....giving them the option to use it against American (and Israeli) targets.
Ordinary
