CURITIBA, Brazil (Reuters) - Jose Dirceu, chief of staff for former President Luiz Inacio Lula da Silva, was one of the main instigators of a bribery scheme involving state-run oil firm Petroleo Brasileiro SA while in office, federal prosecutor Carlos Fernando dos Santos Lima said on Monday at a news conference.
(Reporting by Sergio Spagnuolo; Writing by Caroline Stauffer; Editing by Bernadette Baum)
