Part 1: Ocean explorer Robert Ballard discovered the wreck of the Titanic and the final resting place of the German battleship Bismarck. His journeys into the deep also have given us new insights into undersea geography and life. In this session, he will make a case for further exploration and mapping of the sea's floor.
Part 2: Kareem Abdul-Jabbar is a global icon. The former NBA great goes one-on-one with Katie Couric to recount his evolution from street ballplayer to superstar, New York Times bestselling author, film producer, and community activist.