PACIFIC OCEAN (March 10, 2013) Sailors walk into a cloud of aqueous film forming foam (AFFF) aboard the aircraft carrier USS Ronald Reagan (CVN 76) during AFFF sprinkler testing. Ronald Reagan is underway conducting sea trials following a year-long docked planned incremental availability at Puget Sound Naval Shipyard and Intermediate Maintenance Facility. (US Navy photo by Mass Communication Specialist 2nd Class Richard L.J. Gourley/Released)

[Image courtesy of the US Navy Website.]