This week's broadcast, hosted by Jane Pauley, features Carrie Underwood's emotional interview with Tracy Smith. Plus: Lee Cowan profiles Academy Award-winner Robert Redford; Conor Knighton visits the Lanai Cat Sanctuary in Hawaii; Faith Salie explores the construction zone at the World Trade Center site in Lower Manhattan, which has been decorated by 50 graffiti artists; and the latest on Tropical Depression Florence as it continues to drop several feet of rain on the Carolinas.