IMF chief Christine Lagarde will share her insight into the global economy’s next act. Israeli opposition leader Tzipi Livni will talk to historian Simon Schama about Israel on the brink. Secretary of State Hillary Clinton will appear in a special finale. Mexican congresswoman Rosi Orozco will recount her battle against sex trafficking. We’ll also welcome as moderators Barbara Walters, Christiane Amanpour, Andrea Mitchell, Lesley Stahl, Robin Roberts, Cynthia McFadden, Martha Raddatz, Charlie Rose and Juju Chang.