What most people are failing to remember...
is the fact that before the war, French, German, Russian, and even UN intelligence said that Iraq most likely had such weapons. The international split didn't occur over whether or not they existed, but what should be done about it. The US and Britain wanted military action, a lot of others wanted more inspections. So to say that all the evidence was fabricated by the US and Britain is wrong, even France came to the same conclusion.