"Privately, IAEA officials wondered whether the Americans really understood what they were doing. Qa’qaa had made the propellant for the Nasser 81 artillery rocket programme, itself at the heart of the administration’s case for war. On 3 May, an internal memo at the IAEA warned that, if Qa’qaa was not secured, the result could be “the greatest explosives bonanza in history”."

http://www.guardian.co.uk/world/2011/jan/07/iraq-weapons-factory-al-qaida-us-failure