Iran has had nuclear weapon ambitions before the short ugly man, with the hard to spell and harder to pronounce name, was appointed PM. It also calls into question the idea of whether Moussavi is the "saviour" the west is looking for, as he takes the PM job shortly after 87 if I am not mistaken. Now if Iran wishes to get out of NPT, have it return the technology that it was able to buy as a result of signing this treaty. Have it exile the experts, technicians etc... who were trained as a result of Iran signing NPT. The idea that you can you just drop out of NPT is nonsense, if it is not backed with a return of Product, i.e. human capital and hardware, and yes you should not get a refund, you should lose the assets as a result of breach of treaty.
Greek coast guard seizes ship carrying weapons to Libya (Reuters)
from the article: Iran tried to buy nuclear bomb from Pakistan as early as 1987