Becky Smith, U.S. Army Corps of Engineers, Mobile District mechanical engineer, left, shows Jaycee Henderson, Davidson High School student, how HVAC systems work during a shadow day at the Mobile District Office, Mobile, Alabama, July 8, 2025. Henderson, who is interested in engineering as a career, had the opportunity to shadow engineers to learn more about the career field and USACE. (U.S. Army photo by Chuck Walker)