Ray Suarez reports on the changing conditions in Iraq's Anbar province. Betty Ann Bowser presents a Science Unit report on the safety of the American food supply. Paul Solman discusses globalization winners and losers with students from four countries. Mark Shields and David Brooks provide discussion and analysis of this week's news. The guests this episode are Mark Shields, David Brooks, David Wood, Bing West. Byline: Jim Lehrer, Ray Suarez, Betty Ann Bowser, Paul Solman
