Demonstrators wearing Workers Party t-shirts hold flares and shout slogans during a protest in support of the state-run oil company Petrobras in Rio de Janeiro, Brazil, Friday, March 13, 2015. Brazilian unions and backers of President Dilma Rousseff marched Friday in several cities across the nation, mostly to show support for state-run oil company Petrobras as it's engulfed by a corruption scandal, but also to back Rousseff. (AP Photo/Leo Correa) (The Associated Press)
Demonstrators holding a banner that reads in Portuguese "Petrobras belongs to the Brazilian people" gather for a march in support of the state-run oil company Petrobras and Brazil's President Dilma Rousseff, outside the Petrobras office building, in Sao Paulo, Brazil, Friday, March 13, 2015. Brazili...
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