SAN FRANCISCO -- Petty Officer 3rd Class Liston Jackson, stationed on the CGC Aspen, tends a line to the Fleet Week center buoy here Oct. 8, 2008. The buoy is used as a point of reference for air show performers, such as the Navy Blue Angels, during the San Francisco 2008 Fleet Week. (U.S. Coast Guard photo by Petty Officer 3rd Class Erik Swanson)