The identity of the man who claimed former Iraqi dictator Saddam Hussein had biological weapons, a key piece of information that helped lead the U.S. charge to invade Iraq, has been outed by CBS' "60 Minutes" news show. Rafid Ahmed Alwan, known as "Curve Ball" in intelligence circles, is not a chemical engineering expert, according to the report, which instead characterized Alwan as a liar, a thief and poor student. The CIA received hundreds of summaries of debriefings with Alwan, contributing to other intelligence reports that led the United States to bomb and invade Iraq. Former CIA Director George Tenet...