Afghan children look on at a refugee camp in Jalalabad on May 3, 2015. Like thousands of Afghan returnees, Neik Mohammad became unwanted in Pakistan after a Taliban massacre at a Peshawar school, forcing him to return home to a life of misery and fear in a squalid refugee settlement. SHAH MARAI/AFP/Getty Images hide caption

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Armed Palestinian masked militants push back a crowd of worshippers outside a mosque in Gaza City on August 22, 2014, before executing more than a dozen men for allegedly helping Israel during its six-week assault on the Palestinian enclave. This week, Amnesty International released a report saying that Hamas was responsible for these and other killings. STR/AFP/Getty Images hide caption

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Iraqi anti-terrorism forces patrol in central Ramadi, Iraq, on April 18. A month later, the city fell to the self-declared Iraqi State. Ayman Oghanna, a journalist who was embedded with Iraqi Special Forces in the city, says the Special Forces are capable precision fighters — but are being asked to fill the role of an entire military. AP hide caption

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A photo from March shows Mohammed Soltan being pushed by his father Salah during a court appearance in Cairo, Egypt. Soltan, a dual U.S.-Egyptian citizen, was ordered deported to the U.S. after a prolonged hunger strike protesting his prison conditions. Heba Elkholy/AP hide caption

itoggle caption Heba Elkholy/AP

Rekha is one of the many caged prostitutes Mary Ellen Mark came to know as she photographed in the red-light district of Mumbai. Courtesy of Mary Ellen Mark Studio and Library hide caption

itoggle caption Courtesy of Mary Ellen Mark Studio and Library

In this photo from 2014, passengers walk past the Middle East respiratory syndrome quarantine area at Manila's International Airport in the Phillipines. The virus is now raising public concern in South Korea. Aaron Favila/AP hide caption

itoggle caption Aaron Favila/AP

An aerial view of the Grand Mosque in the holy city of Mecca in October 2014. Muhammad Hamed/Reuters/Landov hide caption

itoggle caption Muhammad Hamed/Reuters/Landov