A new Israeli assessment concludes that much of Iran’s enriched uranium, which could be used to build a bomb, actually survived the bombings by the US.

 
Here’s more from the NY Times:

Israel has concluded that some of Iran’s underground stockpile of near-bomb-grade enriched uranium survived American and Israeli attacks last month and may be accessible to Iranian nuclear engineers, according to a senior Israeli official.

The senior official also said that Israel had begun moving toward military action against Iran late last year after seeing what the official described as a race to build a bomb as part of a secret Iranian project. The official spoke on condition of anonymity because of the sensitivity of the information.

Israel, the United States and now a growing number of outside experts agree that all of Iran’s working centrifuges at Natanz and Fordo — about 18,000 machines, which spin at supersonic speeds — were damaged or destroyed, probably beyond repair. The question they are now examining is how long it would take the Iranians to rebuild some or all of that capability, especially after the top scientists in their nuclear program were targeted and killed.

On one point — whether Iran moved a large part of its stockpile of 60 percent enriched uranium just before the American strike in the early morning of June 22 in Tehran — the Israeli assessment differs from the conclusion of Rafael Grossi, the secretary general of the International Atomic Energy Agency.

Mr. Grossi has said he believes that much of the stockpile that was stored in Iran’s nuclear laboratory at Isfahan was transferred from the site before Israeli and American weapons struck. The senior Israeli official contends that nothing was moved. The storage site at Isfahan, the official said, was too deep for even the most powerful American weapons to destroy.

But the U.S. attack on Isfahan did close off many entrances, and appears to have wiped out laboratories that convert enriched uranium into a form that could be used in a weapon, and that would then fashion it into a metal that could be shaped into a missile warhead.

They don’t go into a lot of detail, but even if this is true Iran has a lot of work ahead of itself if it intends to build a bomb, or rather just sell the enriched uranium to other countries