Ed Tucker, right, Arnold Engineering Development Complex (AEDC) senior technical director, speaks with Sen. Bill Hagerty of Tennessee during a visit by the senator to the headquarters of AEDC, Arnold Air Force Base, Tenn., Aug. 23, 2021. Hagerty met with senior leadership of AEDC and toured the arc heater facility, which supports hypersonic system testing. (U.S. Air Force photo by Jill Pickett)(This image has been altered by obscuring a badge for security purposes.)