Air Force Col. (Dr.) Joseph Brennan, the ear, nose and throat doctor at the Staff Sgt. Heath N. Craig Joint Theater Hospital at Bagram Airfield, Afghanistan, demonstrates a portable hearing test machine with the help of Air Force Staff Sgt. Lee Adams, an ear, nose and throat technician. U.S. Army photo by Spc. Opal Hood Air Force Col. (Dr.) Joseph Brennan, the ear, nose and throat doctor at the Staff Sgt. Heath N. Craig Joint Theater Hospital at Bagram Airfield, Afghanistan, demonstrates a portable hearing test machine with the help of Air Force Staff Sgt. Lee Adams, an ear, nose and throat technician. U.S. Army photo by Spc. Opal Hood SHARE: Download: Full Size (0.31 MB) Credit: VIRIN: 704943-Q-WRZ45-400.jpg Photo Gallery