As they didn't keep a copy, I guess we're ok for a while.

>"Iran has met a key demand of the U.N. nuclear agency by delivering blueprints that show how to mold uranium metal into the shape of warheads, diplomats said Tuesday, in an apparent concession meant to stave off the threat of new U.N. sanctions."
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>"Both the IAEA and other experts have categorized the instructions outlined in the blueprints as having no value outside of a nuclear weapons program."
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>http://news.yahoo.com/s/ap/20071113/ap_on_re_eu/nuclear_iran