U.S. Coast Guardsmen work aboard seagoing buoy tender USCGC Sycamore (WLB 209) during a spilled oil recovery system (SORS) exercise near Barrow, Alaska, July 31, 2012, during exercise Arctic Edge. Arctic Edge is a U.S. Northern Command, U.S. Coast Guard, state, local and tribal exercise designed to test the SORS in the waters surrounding the Arctic regions of Alaska. (U.S. Coast Guard photo by Petty Officer 2nd Class Kelly Parker/Released)