FILE - This June 19, 2013 photo, a protestor uses a cardboard box as a shield against rubber bullets during clashes with riot police near the Castelao stadium in Fortaleza, Brazil. Protesters cut off the main access road to the stadium where Brazil goes up against Mexico in the Confederations Cup soccer tournament. Beginning as protests against bus fare hikes, demonstrations have quickly ballooned to include broad middle-class outrage over the failure of governments to provide basic services and ensure public safety. (AP Photo/Andre Penner, File)

Associated Press
FILE - This June 19, 2013 photo, a protestor uses a cardboard box as a shield against rubber bullets during clashes with riot police near the Castelao stadium in Fortaleza, Brazil. Protesters cut off the main access road to the stadium where Brazil goes up against Mexico in the Confederations Cup soccer tournament. Beginning as protests against bus fare hikes, demonstrations have quickly ballooned to include broad middle-class outrage over the failure of governments to provide basic services and ensure public safety. (AP Photo/Andre Penner, File)
FILE - This June 19, 2013 photo, a protestor uses a cardboard box as a shield against rubber bullets during clashes with riot police near the Castelao stadium in Fortaleza, Brazil. Protesters cut off the main access road to the stadium where Brazil goes up against Mexico in the Confederations Cup soccer tournament. Beginning as protests against bus fare hikes, demonstrations have quickly ballooned to include broad middle-class outrage over the failure of governments to provide basic services and ensure public safety. (AP Photo/Andre Penner, File)
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