Demonstrators wear masks as they raise their fists during a protest against the G20 summit at the Central Bank's main building in Mexico City

 
Demonstrators wear masks as they raise their fists during a protest against the G20 summit at the Central Bank
Demonstrators wear masks as they raise their fists during a protest against the G20 summit at the Central Bank's main building in Mexico City June 14, 2012. Members from different non-governmental organizations took part in a symbolic human blockade at Mexico's Central Bank to protest against the government's economic policy and the upcoming G20 leaders' summit that will be held June 18-19 in Los Cabos. REUTERS/Tomas Bravo (MEXICO - Tags: POLITICS SOCIETY)