Hard Times Generation - For some children, socializing and learning in school are being cruelly complicated by homelessness, as Scott Pelley reports from Florida, where school buses now stop at budget motels for children who've lost their homes. Wynton Marsalis - Jazz missionary Wynton Marsalis shares his love of America's most distinctive art form by taking his Jazz at Lincoln Center Orchestra around the world. Morley Safer tags along as Marsalis and his musicians make the scene in London and then go to Havana for a spicy Afro-Cuban musical treat.