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Hundreds of advocates for marijuana legalization rally and smoke pot outside the White House in Washington, D.C. on April 02, 2016. (Marvin Joseph/The Washington Post via Getty Images)

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A man walks past a screen showing global stock market information on the street in Tokyo on August 25, 2015. (Chris McGrath/Getty Images)

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Filipino protesters display placards during a rally against China's claim to areas of the South China Sea, at the Chinese consulate in Manila on June 12, 2014. (JAY DIRECTO/AFP/Getty Images)

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Russian Prime Minister Vladimir Putin at the Russian armament exhibition Expo Arms-2011 September 9 2011 in the Urals town of Nizhny Tagil, Russia. (Sasha Mordovets/Getty Images)

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Governor Pat Quinn is joined by President Barack Obama for a get out the vote campaign rally at Chicago State University, Chicago, IL, October 19, 2014. (Sara Mays/Quinn for Illinois/Flickr)