U.S. Air Force Airman 1st Class Quanah Roberts, 316th Training Squadron student, social distances and wears a mask while attending the in-classroom portion of his Apprentice Electronic Signals Intelligence Analyst (1N2A) course inside Fred Sebers Hall on Goodfellow Air Force Base, Texas, April 20, 2020. The course was the first-level training for Electromagnetic Spectrum Theory and Radar Theory, with two-thirds of its material taught through distance learning. (U.S. Air Force Photo by Airman 1st Class Abbey Rieves)