'Cobra II'; Charles Duelfer

As the third anniversary of the Iraq war approaches, retired Marine Corps General Bernard Trainor and journalist Michael Gordon share their new book, "Cobra II: The Inside Story of the Invasion and Occupation of Iraq." Charles Duelfer, the former head of the Iraq Survey Group, which was sent to Iraq to search for WMDs, shares his experiences in Iraq and adds his perspective to the discussion of continued conflict in the region.