Brazil police arrest former minister in Petrobras probe - source

By Brad Haynes and Patricia Duarte SAO PAULO (Reuters) - Brazilian police arrested former Finance Minister Guido Mantega on Thursday as part of a sweeping corruption investigation into political kickbacks on contracts at state-run oil company Petroleo Brasiliero, according to a source close to the former minister. In a statement, prosecutors said they were investigating a former minister who was chairman in 2012 of Petrobras, as the company is known, a description fitting Mantega. Mantega served