Genetically modified mosquitoes are released in Piracicaba, Brazil, in an effort to combat Zika virus. These mosquitoes were modified using conventional techniques.
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Ethiopian Prime Minister Hailemariam Desalegn (left), walks alongside President Obama during the U.S. president's visit to the African nation last July. Critics say Ethiopia has cracked down hard on the opposition, but makes modest gestures to give the impression it tolerates some dissent.
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World War II veteran Rudolpho Panaglima lives in Arlington, Va., with his wife, Pura, who holds a portrait of their four children living abroad. Their eldest son, Rolando, has been waiting 20 years for a visa to move to the U.S. from the Philippines.