Why the Petrobras scandal is shaking Brazil By: CNBC.com News November 24, 2014 at 07:12 AM EST The energy giant is engulfed in a corruption scandal that could threaten to engulf Brazil's most senior politicians -- including President Rousseff. Read More >> Related Stocks: Moody's Corp Petrobras - Petroleo Brasileiro S.A. iPath Dow Jones-Goldman Sachs Crude Oil Fund