WASHINGTON (AP) — The Justice Department filed a complaint Monday in federal court against the city of Washington, D.C., and its water and sewer authority, seeking financial penalties for their role in a leak that led to millions of gallons of raw sewage spilling into the Potomac River. The complaint stems from a massive leak in a 72-inch (183-centimeter) pipeline, called the Potomac Interceptor. The pipe collapsed Jan. 19, shooting sewage out of the ground and into the river just north of