A member of the 721st Aerial Port Squadron shows Secretary of the Air Force Barbara M. Barrett and Air Force Chief of Staff Gen. David L. Goldfein a 3D printer during a tour on Ramstein Air Base, Germany, Nov. 22, 2019. The 3D printer is an example of how the Air Force continues to use the newest technologies to complete its mission. (U.S. Air Force courtesy photo by Lt. Col. Sheryll Klinkel)
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