We need to get the Iranians working on nuclear fusion instead.

since 1992!

The concept of nuclear brinkmanship is part of accepted WMD doctrine. A country can maintain a fixed short interval away from weaponization for decades. It is widely accepted that Iran does have a military nuclear program; the amount of material enriched, the enrichment level achieved and the hardening of the involved facilities are an open testament to that (there are many other intelligence signals that we are not privy to).