Will it be enough to shut down the nuclear enrichment process for a year...two years...five years?

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Once you have gotten to twenty, you have essentially mastered the enrichment process.

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The rate of the enrichment process from 3.5% to 20% is quite steady, in spite of the old centrifuge model.

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It is not enriched and cannot be used without first going through a complicated enrichment process, he said, but because of the unstable nature of Iraq, the United States and the Iraqi government decided it should be moved out of that country.

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There are also a number of other unanswered questions about some of Iran's nuclear activities that have not been clarified, like its work in a more advanced centrifuge, its work with uranium tetrafluoride, which is a kind of a salt that's a step in the process that leads to uranium enrichment.

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