U.S.-born cleric Anwar al-Awlaki was killed Friday in a U.S. airstrike in Yemen. U.S. officials say he was linked to several major terrorist plots in recent years. Anonymous/AP hide caption

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Omani Sultan Qaboos bin Said (center) was the first foreign ruler to visit Iran after the 2009 re-election of Iranian President Mahmoud Ahmadinejad (right). Vahid Salemi/AP hide caption

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Disguised members of the "hacktivist" group called Anonymous took to the streets of Los Angeles in March 2008 to protest near buildings associated with the Church of Scientology. Similar demonstrations were held in cities mainly in the U.S. and Europe. Chris Weeks/AP hide caption

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Downtown San Diego is dark after a massive blackout hit Southern California on Thursday. Approximately 1.5 million residents from Southern Orange County to Northern Baja were without power. Sandy Huffaker/Getty Images hide caption

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A section of Highway 12 in Hatteras Island, N.C., was flooded when Hurricane Irene tore through the area on Saturday. The storm cut off the roadway in five locations. Steve Helber/AP hide caption

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Christian Hernandez stocks shelves earlier this month at a Target store in Miami. Target reported strong profit numbers in the second quarter of 2011 in its continued battle with Walmart stores over discount retail dominance. Joe Raedle/Getty Images hide caption

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Tourists photograph the New York Stock Exchange building on Wall Street. Of the estimated 60 million 401(k) participants, 87 percent have at least a portion of their portfolio in stocks. John Minchillo/AP hide caption

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This video image taken from Egyptian state television shows former President Hosni Mubarak, 83, lying on a hospital bed inside a cage of mesh and iron bars in a Cairo courtroom as his trial began Wednesday. AP hide caption

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