A young boy rests by empty USAID vegetable oil tins in the Dagahaley refugee camp which makes up part of the giant Dadaab refugee settlement on July 19, 2011 in Dadaab, Kenya. The refugee camp at Dadaab, located close to the Kenyan border with Somalia, was originally designed in the early 1990s to accommodate 90,000 people but the UN estimates over 4 times as many reside there. The ongoing civil war in Somalia and the worst drought to affect the Horn of Africa in six decades has resulted in an estimated 12 million people whose lives are threatened. (Photo by Oli Scarff/Getty Images)

Recreation time for the seminarists at St. Ignatius Loyala shrine at Azpeitia, Gipuzkoa (Guipúzcoa) in Spain. (Photo by Evans/Getty Images). 1955

Nick Krist makes a funny face as he and his son, Noah, 8, take a selfie before a baseball game between the Los Angeles Angels and the Minnesota Twins, Wednesday, July 22, 2015, in Anaheim, Calif. (Photo by Jae C. Hong/AP Photo)

A demonstrator wearing a mock school uniform costume is pictured next to a traffic police officer during a rally held to support women's rights to an abortion in Santiago, Chile, July 25, 2015. (Photo by Ivan Alvarado/Reuters)

Amateur contestants (L-R) Phil Bailey, John Hindle and Eren Emir pose in telephone booths during the annual European Elvis Tribute Artist Contest and Convention in Birmingham, central England January 2, 2015. (Photo by Darren Staples/Reuters)

A military police officer aims his gun to a demonstrator during a protest in Brasilia, Brazil, Tuesday, April 7, 2015. The officer had picked up a bottle that was thrown towards them but did not fire his gun and backed away. Thousands of workers have staged rallies in 12 cities across Brazil to protest against a proposed law that would allow companies to outsource their labor force. (Photo by Eraldo Peres/AP Photo)

North Korean military participate in the celebration of the 70th anniversary of the founding of the ruling Workers' Party of Korea, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on early October 11, 2015. (Photo by Reuters/KCNA)

Deputy community chief of Yeneka village Douglas Oguta poses for a portrait in his home on the outskirts of the Bayelsa state capital, Yenagoa, in Nigeria's delta region October 8, 2015. Tensions are building in the swampland of the Niger Delta as an amnesty that aimed to bring stability to Nigeria's volatile southern region is due to expire at the end of the year. While the region's towns and cities are mostly calm, local residents say kidnappings and armed robberies are on the increase in the mangrove swamps, where most oil wells are located. (Photo by Akintunde Akinleye/Reuters)