(Newser) -
President Mahmoud Ahmadinejad announced yesterday that Iran has 3,000 working centrifuges for uranium enrichment—enough, experts say, to make a nuclear bomb within a year. But what worries Washington more, the Times of London reports, is whether Israel will launch a preemptive airstrike. US military sources say Tehran's announcement might constitute a tipping point for Israel, the region's only nuclear power.
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