Sgt. Brent Lafontaine, 81st CST of the North Dakota National Guard (right), Staff Sgt. Steven Luttrell with Kentucky’s 41st CST (left) and Officer Seth Brewer with the Louisville Metro Police Department (behind) conduct a search of a scene for chemical hazards during a simulated training event at Churchill Downs in Louisville, Ky., March 14, 2023. During their search, they had to assess victims, test the air quality and investigate suspicions packages. (U.S. Army National Guard photo by Sgt. 1st Class Benjamin Crane)