Master Sgt. James DeVaughn answers questions to an audience member before a live concert of The Airmen of Note, July 4, 2013, at the Smithsonian's National Air and Space Museum in Washington, D.C. The Airmen of Note are the premier Jazz ensemble of the U.S. Air Force. The group played a special concert in honor of Independence Day. DeVaughn is an audio engineer and production assistant with The U.S. Air Force Band. (U.S. Air Force photo/Alexander W. Riedel)