Philip Cheruiyot (second from left) leans in to read the song titles on the CD booklet brought by Diane Thram. Cheruiyot's grandfather sang on Hugh Tracey's recording of "Chemirocha II." Ryan Kailath hide caption

itoggle caption Ryan Kailath

The body of a tourist lies near a beachside hotel in Sousse, Tunisia. Dozens of people were killed Friday when at least one gunman opened fire at the hotel, an interior ministry spokesman said. Amine Ben Aziza/Reuters/Landov hide caption

itoggle caption Amine Ben Aziza/Reuters/Landov

At the health clinic in Minjibir, Nigeria, a child is immunized for polio. David Gilkey/NPR hide caption

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Screengrab from the film, Present Tense.

A worker at Boka Tobacco auction floors displays some of the tobacco crop, in Harare, Zimbabwe, Tuesday May 14, 2013. The country's tobacco selling season kicked off in February and to date tobacco worth over $400 million dollars has been sold to buyers mostly from China and the European Union. Tsvangirayi Mukwazhi/AP hide caption

itoggle caption Tsvangirayi Mukwazhi/AP

A police officer guards the home of a family under a 21-day Ebola quarantine in Freetown, Sierra Leone, back in March. Michael Duff/AP hide caption

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Some 800 migrants from the Middle East arrive at the Greek port of Piraeus on Sunday. Smugglers are charging thousands of dollars to take migrants across the Mediterranean, and prices can vary widely. Children are often allowed to travel for free. Anadolu Agency/Getty Images hide caption

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A Maasai boy and his dog, near the skeleton of an elephant killed by poachers outside of Arusha, Tanzania, in 2013. Jason Straziuso/AP hide caption

itoggle caption Jason Straziuso/AP

Nigerian fans stand and deliver cheers at a match against Australia, played during the Women's World Cup in Winnipeg, Canada. Russell Lewis/NPR hide caption

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Street hawkers have taken over so many sidewalks in Harare's city center that some vendors are turning their cars into makeshift shops. Tsvangirayi Mukwazhi/AP hide caption

itoggle caption Tsvangirayi Mukwazhi/AP

Sudan's President Omar al-Bashir (center), seen here next to Congo's president Denis Sasso-Nguesso (right) and Prime Minister of the Sahrawi Arab Democratic Republic Abdelkader Taleb Oumar, escaped an arrest order in South Africa. Gianluigi Guercia/AFP/Getty Images hide caption

itoggle caption Gianluigi Guercia/AFP/Getty Images