Chris Shelton, branch manager of the Transportation Security Administration’s JBSA-Lackland Canine Training Center, talks to members of the government-wide working dog team about the center’s mission April 17, 2019. The center trains and deploys both TSA-led and state and local law enforcement-led canine teams in support of day-to-day activities that protect the transportation domain and provide a visible deterrent to terrorism. (U.S. Air Force photo by Shannon Carabajal)