Charles A. Duelfer, left, with Brig. Gen. Joseph McMenamin of the Marine Corps.
The top U.S. arms inspector in Iraq contradicts the Bush administration's pre-war claims that Saddam Hussein had WMDs. After a 16-month investigation, Charles Duelfer concluded that Saddam Hussein did not have the weapons but that he aspired to build them. Hear NPR's Mary Louise Kelly.