I just finished To Start a War by Robert Draper. It goes into the deliberations by the Bush administration leading up to the war and how they basically built a fiction in their heads about Saddam and WMD (and how they basically crowded out information that would have challenged their assumptions). No one comes out looking good (including the media, congress, Colin Powell, nobody), but if the person who, by a country mile, comes out the worst in it, then it's got to be Rumsfeld. If you read this book and you saw him on the street you'd never stop slapping him.