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US Navy crew members on deck as a F-18 Super Hornet strike fighter plane takes off from the USS George Washington on the Korean Peninsula's west sea on November 30, 2010 (Song Kyung-Seok - pool/Getty Images)

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Intel CEO Paul Otellini (R) and Apple CEO Steve Jobs speak at the keynote address during the 2006 Macworld January 10, 2006 in San Francisco, California. (Justin Sullivan/Getty Images)

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A Syrian man casts his ballot in front of a picture of Syrian President Bashar al-Assad at a polling station in Damascus on February 26, 2012 (ANWAR AMRO/AFP/Getty Images)

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Escorted by Chinese military personnel, U.S. Secretary of Defense Chuck Hagel arrives at Qingdao International Airport April 7, 2014 in Qingdao, China. (Alex Wong/Getty Images)

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Russia's President Vladimir Putin at the Tomb of the Unknown Soldier just outside the Kremlin in Moscow on June 22, 2012 (ALEXEY DRUZHININ/AFP/GettyImages)

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Russian President Vladimir Putin and President of the People's Republic of China Xi Jinping shake hands at the meeting of the BRICS delegation heads, in St. Petersburg, Russia, September 5, 2013. (Igor Russak/Host Photo Agency via Getty Images)