PACIFIC OCEAN (March 21, 2023) Lt. Hayley Hatherly, from Charleston, S.C., assesses a simulated patient in the hangar bay of the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) during a mass casualty drill. Carl Vinson is currently underway conducting tailored ship's training availability/final evolution problem certification. (U.S. Navy photo by Mass Communication Specialist 3rd Class Emily Claire Bennett)