Robert Scheer writes that one by one, the exotic intelligence factoids Bush's researchers culled from raw intelligence data files to publicly bolster their claim of imminent threat - the yellowcake uranium from Niger, the aluminum tubes for processing uranium, the Prague meeting with Mohamed Atta, the discredited Iraqi informants "Curveball" and Ahmad Chalabi — have been exposed as previously known frauds.

http://www.truthout.org/docs_2005/110805O.shtml