Lt. Col. Ross Gleason, 92nd Civil Engineer Squadron commander, welcomes local high school students to the base at the beginning of a Science, Technology, Engineering and Math tour May 1, 2017, at Fairchild Air Force Base, Washington. The students were exposed to numerous forms of engineering including civil, geotechnical, structural, environmental and mechanical. (U.S. Air Force photo/Senior Airman Mackenzie Richardson)