U.S. Army Sgt. David Hong, Fort Eustis chaplain assistant, talks with his daughter, Mary, after work at Fort Eustis, Va., Oct. 21, 2013. Mary's sister, Sophia, has Dravet syndrome, a rare form of intractable epilepsy that begins in infancy and causes severe seizures and delayed development. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)