Heidi Shyu tours a CERDEC lab at Aberdeen Proving Ground, Md., June 16, 2015. She is accompanied by CERDEC Director Henry Muller; CERDEC Space and Terrestrial Communications Directorate Director John Willison; and CECOM Deputy Director Gary Martin. At the time, Shyu served as assistant secretary of the Army for acquisition logistics and technology. Today, she serves as the Defense Department’s undersecretary of defense for research and engineering, and chief technology officer.