A masked armed separatist militant poses for a photographer near the site of the crash of a Malaysia Airlines plane carrying 298 people from Amsterdam to Kuala Lumpur in Grabove, in rebel-held eastern Ukraine, on July 19, 2014. Dominique Faget/AFP

A masked armed separatist militant poses for a photographer near the site of the crash of a Malaysia Airlines plane carrying 298 people from Amsterdam to Kuala Lumpur in Grabove, in rebel-held eastern Ukraine, on July 19, 2014. Dominique Faget/AFP

A view of Maracana stadium from the Mangueira favela as Argentina and Germany played the final of the 2014 World Cup in Rio de Janeiro, July 13, 2014. Lucas Landau/Reuters

A view of Maracana stadium from the Mangueira favela as Argentina and Germany played the final of the 2014 World Cup in Rio de Janeiro, July 13, 2014. Lucas Landau/Reuters