Crew members of the Coast Guard Cutter James Rankin, home-ported at the Coast Guard Yard in Baltimore, go about their daily business while in port Tuesday, July 30, 2013. The crew aboard the Rankin is responsible for the maintenance of more than 400 buoys in the Upper Chesapeake Bay and its tributaries, including the Potomac River up to the nation's capital. (Coast Guard photo by Petty Officer 2nd Class David R. Marin)