Lt Col Ravi Chaudhary, Commander of the 317th RCS, welcomes Air Force STEM 2020 contest winners to the Pentagon April 20. Members of the 317th Recruiting Squadron, located at Oxon Hill, Md., are launching a year-long campaign to energize Virginia, Maryland and Washington D.C. schools supporting careers in science, technology, engineering and math, or STEM. (Courtesy photo)