President Obama, teleprompter to his side, spoke at the White House on Aug. 11 to mark his signing of the Manufacturing Enhancement Act. U.S. Trade Representative Ron Kirk is behind him. Jewel Samad/AFP/Getty Images hide caption

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More American colleges are offering classes that teach students to deal with a shrinking and increasingly dangerous world. iStockphoto.com hide caption

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Tea Party favorite Rand Paul rode a wave of anger to grab the Republican Senate nomination in Kentucky. Ed Reinke/AP hide caption

itoggle caption Ed Reinke/AP