Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/804589'></iframe> Download Embed Share Joint Chiefs Vice Chairman Speaks at AI Symposium Defense.gov June 23, 2021 | 28:34 Air Force Gen. John E. Hyten, vice chairman of the Joint Chiefs of Staff, speaks at the 2021 Department of Defense Artificial Intelligence Symposium and Technology Exchange, June 23, 2021.