Reading the Canadian paper today I saw a lot of support for the war in Iraq and alot of shame that Canada isnt participating.
None of the support mentioned Weapons of Mass destruction at all.
I think a major diplomatic mistake for the US was the whole "you have to let us invade hes still got weapons of mass destruction" strategy.
Might seem like a silly difference but I dont think there was ever much support for the US waging war to stop another country from having Weapons of Mass destruction when they have them themselves.
I think the same amount of time focusing on the liberate Iraq angle would have been more effective. Showing the effects of the regime on the Iraqi people. We all know that Bush wants him out for that reason primarily.
I think the world got into an "if it doesnt fit, you must aquit" kind of mode about the WMD issue. Maybe it was thought it would make more sence to the countries in the area.