VIENNA - Iran would currently need at least two to four months to produce enough weapons-grade uranium for one nuclear bomb, and additional time to make the device itself, a US security institute said on Monday.
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Although the lead times are shortening, an Iranian "nuclear breakout" to weapons capability in the next year could not escape detection by the UN's International Atomic Energy Agency (IAEA) or the United States, said the report by the Institute for Science and International Security (ISIS), a Washington think-tank that tracks Iran's nuclear program.
ISIS said Iran would need two to four months to produce the 25 kg of weapons-grade uranium needed for one nuclear weapon, but longer for the weaponization process.
It said the scenario of two-to-four months presumed that work would take place at the Natanz enrichment plant.