http://www.foxnews.com/story/0,2933,183269,00.html
"Late last year, inspectors saw the document that apparently showed how to mold highly enriched grade uranium into the core of warheads, and it figured in a November report by IAEA chief Mohamed ElBaradei.
Initial reports said the IAEA was given the documents at that time but the diplomats said Friday that Tehran handed them over only last week in a show of cooperation meant to head off increasing international consensus on reporting Iran to the Security Council over suspicions that its nuclear activities might be a cover for developing weapons."