Marshall/TPM: No one on the inside of US foreign policy has any foreign policy or military crisis experience

[NNadir]

9. It is abysmally stupid to bomb a nuclear facility, but to address your question, the radiation...

...releases would depend to a large extent on what kind of facility was hit.

If it was an enrichment plant, radiation levels would be minor. A reprocessing plant would be more serious.

The former Soviet plutonium production plant at Mayak is probably the most radiologically contaminated facility on Earth. They had a major chemical explosion in the 1950s that spread radiation widely, and after that they disposed of fission products in a lake lacking an outlet. The lake remains hot.

Russia is still there.

It does seem that people living in the area did over the long term exhibit excess mortality with certain cancers, notably leukemia, with excess deaths numbering in the hundreds.

It is very unlikely that the Iranian nuclear program if it even exists is on the scale of the Soviet program in the 1950s, but that said, starting a war out of childish impetuosity is appalling with or without radiation risks.