If we wait until he's already invaded before we speak up, metaphors about barn doors seem rather appropriate. So far Bush has not offered one scrap of evidence to indicate that Iraq has WMD's. Given that he is attempting to convince us that Iraq is so armed, it is suspicious that he gives no proof. This does not necessarily mean that he is lying, but it does mean that he does not think that the American people have a right to know why the government chooses to go to war. Even if he is not lying, I don't trust anyone who refuses to tell me why I should support him, but demands that I do.