To build a bomb...I’ve read you only need 4,000 to 5,000 to build a bomb.
On the medical side, which they have a legitimate use for, it is necessary to have a continuous supply of radiation sources, tracers, which can’t be delivered from far away simply because they have short half-lives. PET scans, etc. need those radio nuclides. But that’s not U-235. And remember it was us, US, that started training their doctors, etc. how to use this stuff back in the 1960’s.
But medical use is nowhere near bomb quantity kind of production and if the Persians were doing what they claim to be doing it would be super easy for them to prove it. The Pakistan facility is the closest comparison available and the Persians ain’t even there yet.
Under Hussein Obama’s plan, each U-235 fission bomb would take 67% more enrichment time. That’s it. BIG DEAL!! For Iran, that is a small price to pay for having the road to nukes paved for them. Hussein is looking more like the Anti-Christ every day.