Earlier this month, people demonstrated in Nigeria's capital, Abuja, calling on the government to rescue girls taken from a secondary school in Chibok region in April. Now there are reports that militants of the extremist Boko Haram movement have kidnapped more girls. Olamikan Gbemiga/AP hide caption

itoggle caption Olamikan Gbemiga/AP

Iraqi policemen patrol Abu Ghraib, 25 miles west of Baghdad, in June. Islamic State militants have captured many cities and town in western Iraq this year. The government still controls Abu Ghraib, but the militants are nearby and local tribes are also restive. Karim Kadim/AP hide caption

itoggle caption Karim Kadim/AP

Data sources: David Ropeik/Harvard University, National Weather Service, World Health Organization, Northeastern University Laboratory for the Modeling of Biological and Socio-Technical Systems, National Geographic, United States Census Adam Cole and Ryan Kellman/NPR hide caption

itoggle caption Adam Cole and Ryan Kellman/NPR

Lacey Williams (from left), Mary Espinosa, Jaime Villegas, Armando Cruz Martinez and Elisa Benitez talk inside the offices of the Latin American Coalition in Charlotte, N.C. According to a 2011 Pew Hispanic report, the median age of Latinos in North Carolina is 24. Andy McMillan for NPR hide caption

itoggle caption Andy McMillan for NPR