Dennis Flynn, the Commerce City, Colorado Police Department Commander, provides an impactful presentation about PTSD to Airmen during the Enlisted Leadership Symposium, Jul. 25, at Youngstown-Warren Air Reserve Station in Vienna, Ohio. Flynn brought a unique perspective to the table because he worked as a hostage negotiator for several years where he encountered veterans suffering from PTSD firsthand. (U.S. Air Force photo by Staff Sgt. Rachel Simones)