Charles Duelfer, who led the official U.S. search for weapons of mass destruction after the war, says the tapes show extensive deception but don't prove that weapons were still hidden in Iraq at the time of the U.S.-led war in 2003. "What they do is support the conclusion in the report, which we made in the last couple of years, that the regime had the intention of building and rebuilding weapons of mass destruction, when circumstances permitted."