Brazil's Rousseff vows to tackle graft, boost economy

BRASILIA, Brazil---Brazilian President Dilma Rousseff kicked off a second term Thursday, vowing to tackle corruption and revamp the economy as her government reels from a series of setbacks. Brazil's economy, once booming, has barely grown during Rousseff's time in office, and her administration is embroiled in a multimillion-dollar graft scandal at state-owned oil giant Petrobras.

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