Excellent, easy to understand breakdown of events about explosives.

This is written in a simple question and answer format. Who knew what, when. Best I've seen.
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Q. Did U.S. troops ever search the facility for the high explosives?

A. It appears that the first time U.S. troops searched specifically for high explosives was on May 27, 2003, after a purported request by the U.N. nuclear agency on May 3. The troops found that the seals had been broken. It's not known whether they did a further accounting of the materials themselves.

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Q. If the Americans found the seals broken, did they inform the nuclear agency?

A. It doesn't seem so. The nuclear agency says it first learned of the disappearance of the explosives from the Iraqi government on Oct. 10, 2004. The Pentagon would not say whether it had informed the nuclear agency that the high explosives were not where they were supposed to be.

http://ap.tbo.com/ap/breaking/MGB0SYG4U0E.html