A U.S. official working with an international group of specialists searching post-Saddam Iraq for weapons of mass destruction said today that more work needs to be performed before arriving at any conclusions. "I do not believe we have sufficient information and insight to make final judgments with confidence at this time" regarding the whereabouts of Saddam Hussein's WMDs, Charles A. Duelfer told Senate Armed Services Committee members here. Duelfer's testimony before the committee was behind closed doors and his unclassified remarks were posted on the CIA's public Web site. Duelfer said he's been the CIA's special adviser for strategy regarding...