Iraq, Afghanistan and Immigration Heat Up in Democratic Presidential Debate; Sisters of the Living Word Apply Catholic Principles to Social Justice; Weekend Passport: Teatro Zinzanni

Summary: On today's show:Democratic presidential candidates faced off on Afghanistan, Iraq and immigration during last night's debate. We talk to two nuns from an Arlington Heights-based order that applies Catholic principles to a mission of social justice. Two performers from Teatro ZinZanni's new show, "Love, Chaos and Dinner" join today's Weekend Passport.