The U.S. Is Killing Itself, Columbia's Sachs Says

Jeffrey Sachs, a professor at Columbia University's School of International and Public Affairs, says the U.S. must invest in the future for all Americans, instead of just the people at the top. Martin Sorrell, CEO of WPP, says the death of television has been exaggerated. Finally, Steve Case, Revolution LLC's chairman and CEO, says diplomacy should be face-to-face, not through 140-character tweets.

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