Iran’s nuclear efforts have been largely bluff since Stuxnet took out its enrichment efforts years ago.
Countries which actively look to make nuclear weapons don’t announce to the world their uranium enrichment efforts like Iran does.
They hide them underground and simply build up enough of a supply to surprise the world with a nuclear test. So by that time its too late for anyone to stop them. Uranium enrichment & plutonium creation are the typical barrier to nuclear weapon creation. The technology is 70+ years old and easy enough to adapt. But the process of creating enough fissile material is expensive, time consuming and easy to disrupt from outside sources. That is why bluffing about how much uranium your enriching is far more effective for propaganda than actually doing it.
