Norman Lear on laughing at what ails America

TV legend Norman Lear, whose credits include such hit series as “All in the Family” and “Maude,” always managed to make audiences laugh about dangerous topics: Racism, sexism, bigotry, homophobia. And today, at age 100, he’s determined to find out if we’ll still laugh together. He sits down with “Sunday Morning” senior contributor Ted Koppel to discuss his upcoming projects, including a possible remake of one of the most controversial sitcom episodes of all time.