Sen. John Kerry, D-Mass., at his confirmation hearing last week. Zhang Jun /Xinhua /Landov hide caption

itoggle caption Zhang Jun /Xinhua /Landov

Egyptian soldiers stand guard in front of the U.S. National Democratic Institute, an NGO rights group in downtown Cairo on December 29, 2011. Filippo Monteforte/AFP/Getty Images hide caption

itoggle caption Filippo Monteforte/AFP/Getty Images

The control tower at Washington's Ronald Reagan National Airport, where the first case of a sleeping controller was reported. Cliff Owen/AP hide caption

itoggle caption Cliff Owen/AP