VIENNA — Iran now could produce enough weapons-grade uranium to arm a nuclear bomb within two to four months, but still would face serious “engineering challenges” and much longer delays before it would be able to use the material in an atomic warhead, a respected U.S. think tank said Monday.
While Iran denies any interest in possessing nuclear arms, the international community fears it may turn its peaceful uranium-enrichment program toward weapons making — a concern that is growing as Tehran expands the number of machines it uses to enrich uranium.
In a strident call for an internationally drawn “red line” on what he said is Iran’s move toward nuclear arms, Israeli Prime Minister Benjamin Netanyahu said Sept. 28 the world has until next summer at the latest to stop Tehran before it can build an atomic bomb.
For now, U.S. military and intelligence officials say they don’t believe Iran’s leadership has made the decision to build a bomb, while also warning that the country is moving closer to the ability to do so.
But in its report made available to the Associated Press ahead of publication Monday, it drew a clear distinction between Tehran’s ability to make the fissile core of a warhead by producing 55 pounds of weapons-grade uranium from its lower enriched stockpiles and the warhead itself.
“Despite work it may have done in the past,” Iran would need “many additional months to manufacture a nuclear device suitable for underground testing and even longer to make a reliable warhead for a ballistic missile,” the report said.
Additionally, ISIS — which often advises Congress and other branches of U.S. government on Iran’s nuclear program — said any attempt to “break out” into weapons-grade uranium enrichment would be quickly detected by the United States and the International Atomic Energy Agency, which monitors Tehran’s known enrichment sites.
With Washington likely to “respond forcefully to any “break-out” attempt, Iran is unlikely to take such a risk “during the next year or so,” said the report.
Still, the report suggested a narrowing window as Iran positions itself to increase enrichment.
Iran now has more than 10,000 centrifuges enriching uranium at its main plant at Natanz, about 140 miles southeast of Tehran, making low-level material.
Additionally it has about 800 machines turning out 20 percent enriched uranium at Fordo, a bunkered structure fortified against air attack near the city of Qom, as well as about 2,000 more installed but not yet running.
Uranium enriched to 20 percent can be turned into weapons-grade material much more quickly than low-enriched uranium.View Entire Story
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