Brazil arrests push Petrobras probe back to Rousseff's door

By Alonso Soto and Anthony Boadle BRASILIA (Reuters) - President Dilma Rousseff’s austerity program to fix Brazil's shaky finances is again in trouble after her point man in the Senate was arrested in a widening corruption scandal, and it could reignite calls for her impeachment. "Unfortunately the political crisis deepens further and complicates our agenda in Congress." Delcidio do Amaral is the ruling Workers' Party most senior figure in Congress and has been a smooth negotiator with the