David Kay, photographed in October 2003.
David Kay, who recently resigned as head of the U.S. group searching for weapons of mass destruction in Iraq, now says he doesn't think stockpiles of such weapons existed. He no longer believes that Iraq had a large-scale production program in the 1990s.
The Bush administration disagrees, and stands by its previous assessments.
Kay joins NPR's Liane Hansen for an extended discussion.