Check this out, America has also used fake evidence to support the first Gulf War. A 5 times pullitzer nominee and renowned journalist, Jean Heller has discovered this. For the details, have a look at this Guardian article:
http://www.guardian.co.uk/comment/st...,853885,00.htm
Also, the Swedish Sipiri Institute has released a statement saying that some of the evidence put forward by powell was from the nineties...