U.S. Air Force 1st Lt. Joseph Broeckelmann, 633rd Medical Operations Squadron emergency room nurse, his wife, Krista, and his son, Charles, listen as Col. Wayne Pritt, 633rd Medical Group commander, explains the safety status of the returning 633rd MDG Airmen during a briefing at Langley Air Force Base, Va., Oct. 20, 2014. Family members had a chance to ask any questions about the virus and the 21-day, twice-daily testing the returned Airmen are experiencing. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)