Iran said to have enough nuclear fuel for one weapon

Iran has now produced roughly enough nuclear material to make, with added purification, a single atom bomb, according to nuclear experts analyzing the latest report from global atomic inspectors.

The figures detailing Iran’s progress were contained in a routine update on Wednesday from the International Atomic Energy Agency, which has been conducting inspections of the country’s main nuclear plant at Natanz. The report concluded that as of early this month, Iran had made 630 kilograms, or about 1,390 pounds, of low-enriched uranium.

Several experts said that was enough for a bomb, but they cautioned that the milestone was mostly symbolic, because Iran would have to take additional steps. Not only would it have to breach its international agreements and kick out the inspectors, but it would also have to further purify the fuel and put it into a warhead design — a technical advance that Western experts are unsure Iran has yet achieved.

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“They clearly have enough material for a bomb,” said Richard Garwin, a top nuclear physicist who helped invent the hydrogen bomb and has advised Washington for decades. “They know how to do the enrichment. Whether they know how to design a bomb, well, that’s another matter.”

Iran insists that it wants only to fuel reactors for nuclear power. But many Western nations, led by the United States, suspect that its real goal is to gain the ability to make nuclear weapons.

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While some Iranian officials have threatened to bar inspectors in the past, the country has made no such moves, and many experts inside the Bush administration and the IAEA believe it will avoid the risk of attempting “nuclear breakout” until it possessed a larger uranium supply.

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