Days before the United States launched Operation Iraqi Freedom this past March, a well-known intellectual close to the White House walked me through the necessity and promise of the coming invasion. Whatever rancor it caused in the short term, he said, would pale in comparison to the payoff that would follow. In the months and years to come, Iraqis who had suffered under Saddam Hussein's tyranny would write books and testify to the brutality of the regime, the bankruptcy of the Arab nationalism that stood idly by while they suffered, and the improvement of their lives. That testimony and the...