140429-N-JC752-273 PACIFIC OCEAN (April 29, 2014) Aviation BoatswainÕs Mate (Handling) Airman Alex Casden, from South Lake, Texas, participates in a countermeasure wash down on the flight deck of the aircraft carrier USS Nimitz (CVN 68). Nimitz is underway performing flight deck certifications. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Kole E. Carpenter/Released)