Reuters: Hundreds of indigenous protesters were holding 38 police hostage early on Saturday in Peru’s Amazon jungle after fights between tribes and police killed up to 33 people in the worst violence of President Alan Garcia’s government. Demonstrators also were threatening to set fire to an oil pumping station of state-owned Petroperu unless the government told police to halt efforts to clear weeks of blockades of roads and rivers that have hurt food and fuel supplies. Tribes, worried …