A lot of nuclear scientists disappeared one way or the other in that timeline, all kinds of sabotage.
But what I want to say right now is that I understand why the Iranian regime needs a nuke, after the Budapest Memorandum became a simple piece of paper. And a lot of other countries will choose nuclear weapons very soon, I assume that in Europe there are many old plans that are getting a review right now.
But maybe Iran should be left alone. The Saudis will get it next. And so on.