A demonstrator holds a sign with pictures of Brazilian President Dilma Rousseff (L) and Brazilian former President (2003-2011) Luiz Inacio Lula da Silva reading "Wanted by the people" outside the Federal Police headquarters in Curitiba, Brazil on August 4, 2015, as Brazilian former chief of staff (2003-2005) Jose Dirceu is expected to be transferred. Brazilian police on Monday arrested a top aide of former president Luiz Inacio Lula da Silva in the widening corruption probe into state oil company Petrobras that has engulfed the political and business establishment. AFP PHOTO / HEULER ANDREY (Photo credit should read Heuler Andrey/AFP via Getty Images)
