60 Minutes 1/12

The flooding in Venice, Italy could be a preview of things to come for coastal cities. John Dickerson reports. The world's top-ranked tennis player, Rafael Nadal, invites Jon Wertheim to one of his morning practices, despite being on break from the tennis season. Dark, complex characters may be a trademark, but Joaquin Phoenix showed Anderson Cooper a different side of him. Those stories on tonight's "60 Minutes."