From left: Staff Sgt. Chris Clark, 241st Engineering Installation Squadron, 118th AW, Senior Airman Tiffany Hogeland, 118th Civil Engineering, and Staff Sgt. Joshua Dow, 118th Bioenvironmental Engineering, assess the room and take readings of the air quality before taking a sample of an "unknown" substance on the table that was simulated to have come from the mail package Jan. 26 during the National Guard Bureau's all hazard response training that took place at the base Jan. 24-28. Far right: a member of L3, which was contracted by NGB, watches the team in action and helps them learn to use the equipment.