U.S. Air Force Senior Airman Nate Wallgren, right, an emergency medical technician from the 109th Aeromedical Squadron, listens to a role-player’s complaints in St. Paul, Minn., Aug. 16, 2018. Wallgren is attending a week-long EMT refresher course where they receive classroom instruction and test their skills in emergency response scenarios. (U.S. Air National Guard photo by Tech. Sgt. Amy M. Lovgren)