In short, they believed their own propaganda. A mistake for which many, many innocent Americans and Iraqis are paying with their lives and health. And a Pandora's box has been opened - it will get worse.

The Bush administration's failure to plan to win the peace in Iraq was the product of many of the same problems that plagued the administration's case for war, including wishful thinking, bad information from Iraqi exiles who said Iraqis would welcome American troops as liberators and contempt for dissenting opinions.

"The possibility of the United States winning the war and losing the peace in Iraq is real and serious," warned an Army War College report that was completed in February 2003, a month before the invasion. Without an "overwhelming" effort to prepare for the U.S. occupation of Iraq, the report warned: "The United States may find itself in a radically different world over the next few years, a world in which the threat of Saddam Hussein seems like a pale shadow of new problems of America's own making."

"A half-dozen intelligence reports also warned that American troops could face significant postwar resistance. This foot-high stack of material was distributed at White House meetings of Bush's top foreign policy advisers, but there's no evidence that anyone ever acted on it.

"It was disseminated. And ignored," said a former senior intelligence official.

"The Pentagon's Defense Intelligence Agency was particularly aggressive in its forecasts, officials said. One briefing occurred in January 2003. Another, in April 2003, weeks after the war began, discussed Saddam's plans for attacking U.S. forces after his troops had been defeated on the battlefield.

"Similar warnings came from the Pentagon's Joint Staff, the State Department's Bureau of Intelligence and Research, and the CIA's National Intelligence Council. The council produced reports in January 2003 titled "Principal Challenges in Post-Saddam Iraq" and "Regional Consequences of Regime Change in Iraq."