1: Sao Paulo , Brazil ( CNN ) Hundreds of thousands of Brazilians are taking to the streets in protests across the country , lashing out against President Dilma Rousseff as she struggles with an economic downturn and a massive bribery scandal . 2: One of the biggest : an investigation into a multimillion-dollar kickback scheme at the state-run oil company Petrobras . 3: Protesters angry over bribery scandal involving state-run oil company Petrobras .
1: a massive bribery scandal 2: a multimillion-dollar kickback scheme at the state-run oil company Petrobras 3: bribery scandal involving state-run oil company Petrobras