U.S. Air Force fire protection specialists assigned to the 316th Civil Engineer Squadron use a multi-mission handheld mass spectrometer during a training exercise at Joint Base Andrews, Md., Oct. 4, 2024. The multi-mission tool is used for real-time chemical detection and identification, utilized by responders conducting chemical, explosive, priority drug and hazardous material operations. (U. S. Air Force photo by Airman 1st Class Martha Moore)