150325-N-DB801-085 PEARL HARBOR, Hawaii - -- Chief Electronics Technician Derek Scammon, right, of the Los Angeles-class fast attack submarine USS Olympia, highlights daily operations in the torpedo room during a tour for veterans and their wives of the Permit-class submarine USS Plunger at Joint Base Pearl Harbor-Hickam, March 25. The Plunger crew is in Hawaii as part of a 50th anniversary reunion tour. (U.S. Navy photo by Mass Communication Specialist 1st Class Steven Khor/Released