BARRICADE U.S. Navy sailors prepare to rig the barricade during a night drill aboard the aircraft carrier USS George H.W. Bush in the Atlantic Ocean, Jan. 27, 2011. George H.W. Bush is under way in the Atlantic Ocean conducting a composite training unit exercise. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 338053-D-GMR60-860.jpg Photo Gallery