Rear Adm. Daniel Abel, commander, Coast Guard 17th District, listens as Joel Paine, the marine assets director at Superior Energy - Marine Technical Services, goes over some of the systems on board the Arctic Challenger near Samish Island, Wash., March 27, 2015. The Arctic Challenger was originally built in 1976 and was retrofitted to stand-by as a fourth line of defense in the event of a seafloor oil well blowout during drilling operations in the Arctic. (U.S. Coast Guard photo by Petty Officer 3rd Class Amanda Norcross)