Hyten Briefing Air Force Gen. John E. Hyten, the vice chairman of the Joint Chiefs of Staff, describes the tiered testing system that the Defense Department is putting in place to combat coronavirus during a news conference at the Pentagon, April 22, 2020. SHARE IMAGE: Download Image: Full Size (6.01 MB) Tags: hyten, Vice Chairman Photo By: Air Force Staff Sgt. Jackie Sanders, DOD VIRIN: 200422-D-XI929-1012C.JPG Photo Gallery