Stuart A. Cohen, who has been with the CIA for 30 years, was acting chairman of the National Intelligence Council when the 2002 National Intelligence Estimate on Iraq's weapons of mass destruction was published. The National Intelligence Estimate of October 2002 concerning Iraq's weapons of mass destruction has been dissected like no other product in the history of the U.S. intelligence community. We have reexamined every phrase, line, sentence, judgment and alternative view in this 90-page document and have traced their genesis completely. I believed at the time that the estimate was approved for publication, and I still believe now,...