John B. Sherman John B. Sherman, the principal deputy chief information officer for the Defense Department, speaks during the DOD Intelligence Information System Worldwide Conference in Tampa, Fla., Aug. 20, 2019. At the time, Sherman served as the intelligence community's chief information officer. SHARE: Download: Full Size (0.45 MB) Credit: David Richards, DOD VIRIN: 190820-D-SG895-0006M.JPG Photo Gallery