Summary: Three years ago, Chrysler was sputtering toward bankruptcy, but one man bet he could save the company and tens of thousands of jobs. Steve Kroft interviews Sergio Marchionne. Meet the scientists who create flavors that make foods and beverages so tasty that critics say they're addictive Khan Academy and its free online educational videos are moving into the classroom and across the world. Their goal: to revolutionize how we teach and learn.
