Reuters: The U.S. government has filed a civil complaint against BP Exploration (Alaska) Inc alleging that the Alaska-based company violated U.S. clean air and water laws, the U.S. Justice Department said on Tuesday. The complaint, filed in U.S. District Court in Anchorage, accuses BPXA of illegally discharging more than 200,000 gallons of crude oil from its pipelines onto the North Slope of Alaska during two major oil spills in the spring and summer of 2006. The complaint also alleges …