Brazil's president to shake up Petrobras but keep CEO

Brazilian President Dilma Rousseff said Monday that she would fire top executives at state-owned oil giant Petrobras but keep the scandal-plagued firm's chief, Graca Foster. Petrobras, Brazil's biggest company, has been embroiled in controversy since March, when a former director was arrested for corruption and told investigators about a kickback scheme worth billions of dollars reaching deep into the halls of power in the world's seventh-largest economy. She told me that if this