We have not done so, but we have stated our willingness to do so. Recall that, before any evidence came to light that Saddam was not complying with Resolution 1441, Bush had already commited himself to a policy of regime change, and that Bush has stated that nuclear or chemical weapons might be used in a pre-emptive attack, even without Saddam using such weapons first. It's like the cop getting an arrest warrant before searching your house for the evidence he needs for said warrant. Even if he finds the evidence, he's not acting impartially.