CBS has announced that Betty Nguyen is leaving CNN and joining the network as a full-time CBS News Correspondent as of March 11th. Nguyen will anchor "CBS Morning News" and report for "The Early Show." Nguyen joined CNN in 2004 and is an anchor for the weekend editions of "CNN Newsroom." "She has a great on-air presence and brings a tremendous amount of hard news reporting and anchoring experience to CBS News," said CBS News and Sports president Sean McManus in a release. Prior to her time at CNN, Nguyen started her career as an anchor at two CBS affiliates...