RIO DE JANEIRO, BRAZIL - AUGUST 16: Protesters march calling for the impeachment of President Dilma Rousseff along Copacabana beach on August 16, 2015 in Rio de Janeiro, Brazil. A massive corruption scandal at Brazil's state-owned oil company Petrobras has rocked the nation which is now in the midst of a hard-hitting recession ahead of the Rio 2016 Olympic Games. Rousseff's approval rating has dropped below ten percent. (Photo by Mario Tama/Getty Images)
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