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SAO PAULO, BRAZIL - MARCH 16: Demonstrators protest for the impeachment of President Dilma Rousseff and also against corruption being investigated involving resource diversion and money laundering in Petrobras scandal of corruption on March 16, 2016, in Sao Paulo, Brazil. Former President Luiz Inacio Lula da Silva had his temporary detention requested by the prosecutor of Sao Paulo for alleged involvement in funding shifts and corruption. A telephone recording between President Dilma Rousseff and former President Lula was released by the Federal Police tonight. Audio refers to a letter of Lula's tenure as new Minister should be used if it were arrested by police. (Photo by Victor Moriyama/Getty Images)

SAO PAULO, BRAZIL - MARCH 16: Demonstrators protest for the impeachment of President Dilma Rousseff and also against corruption being investigated involving resource diversion and money laundering in Petrobras scandal of corruption on March 16, 2016, in Sao Paulo, Brazil. Former President Luiz Inacio Lula da Silva had his temporary detention requested by the prosecutor of Sao Paulo for alleged involvement in funding shifts and corruption. A telephone recording between President Dilma Rousseff and former President Lula was released by the Federal Police tonight. Audio refers to a letter of Lula's tenure as new Minister should be used if it were arrested by police. (Photo by Victor Moriyama/Getty Images)