Weighing a Specimen Dr. Gregory E. Berg, lab case manager for the Defense POW/MIA Accounting Agency’s scientific analysis directorate, weighs a portion of a test specimen in DPAA’s isotope lab on Joint Base Pearl Harbor-Hickam, Hawaii, March 9, 2020. SHARE IMAGE: Download Image: Full Size (2.86 MB) Photo By: Air Force Staff Sgt. James Thompson VIRIN: 200309-F-WW236-0043M.JPG Photo Gallery