Part 1: Jeffrey Sachs, Director, Earth Institute at Columbia University / Special Adviser to UN Secretary

Part 2: Panel on Artificial Intelligence. Includes... Rodney Brooks, Director, MIT Computer Science & Artificial Intelligence Laboratory / Fujitsu Professor of Computer Science & Engineering, MIT / Co-Founder and Chief Technology Officer, iRobot; Eric Horvitz, Senior Researcher & Group Manager, Adaptive Systems & Interactions Group, Microsoft Research; Ron Brachman, Director, Information Processing Technology Office, Defense Advanced Research Projects Agency / President, American Association for Artificial Intelligence