The UN is more responsible for the state of affairs in Iraq presently than anyone, IMO. Had they marshalled the power they possessed with respect to Iraq and WMD, etc. way back when they should have, we would never be there.
President Bush did the world a huge favor in exposing the UN as the flaccid world body organ it is.
Not sure if they're back on board, haven't read anything really expounding on that, but if they are I'm more than a little sick to my stomach about it.