

These wouldn’t be large nuclear weapons, just small warheads within a heavy housing that is designed to smash into the ground as deeply as possible before detonating.
You don’t technically have to penetrate the bunker facility to do immense damage to it - if you vibrate a sealed concrete container full of humans, you can turn them into a smooth paste without having to destroy the container, like mixing a can of paint. To prevent this, Iran will have put the fragile enrichment equipment into rooms which are resting on dampening springs, like an earthquake resistant building. I don’t think there’s any one super-bomb the US can use - they’d just have to keep hitting it with small earth-penetrating nukes until the mountain progressively fractured and the facility progressively crumbled.
Assuredly, no matter the result, when the world detects radiation emission, the US will say it’s because they destroyed the target, not because of the bombs. They might even try to say they used a regular bomb and any nuclear emissions are purely from Iranian material.







It has already been a civil war for 12 years.