Junot Diaz won a Pulitzer Prize in 2008 for his novel The Brief Wondrous Life of Oscar Wao. Nina Subin/Penguin Group hide caption

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Syrian refugees gather amid olive trees in an area controlled by the rebel Free Syrian Army, in northern Syria near the Turkish border, on Sept. 25. The area has become a way station for Syrian refugees pushed out of neighboring Turkey. Michel Moutot /AFP/Getty Images hide caption

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Supporters of Cambodian journalist Mam Sonando protest outside a Phnom Penh courthouse on Monday, when judges sentenced him to 20 years in jail for leading an alleged secession movement. Critics say the pro-democracy activist's case was politically motivated. Anthony Kuhn/NPR hide caption

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Sen. Jon Tester, D-Mont., (center) campaigns at a parade Saturday in Belgrade, Mont. Martin Kaste/NPR hide caption

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Both President Obama and rival Mitt Romney say the tax code is too complicated. But they haven't been specific about which tax breaks they want to eliminate. Tim Boyle/Getty Images hide caption

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An advertisement for then-presidential candidate Barack Obama appeared in the Xbox 360 Live version of the video game Need for Speed: Carbon in 2008. Again this year, Obama is advertising in video games. AP/Electronic Arts Inc. via Obama campaign hide caption

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Researchers are increasingly using cloud computing to discover new drugs and medical treatments. Cloud computing is often cheaper and quicker than in-house computing. iStockphoto.com hide caption

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