National Guard Senior Airman Farris Floyd and National Guard Tech. Sgt. Anthony Fields don their MCU-2 protective masks during a simulated chemical attack at Gulfport Combat Readiness Training Center, MS., Feb. 2, 2012. As part of the Air Mobility Command's Operational Readiness Inspection, Floyd and Fields must show they are able to survive and operate in a chemical environment by donning their chemical ensemble. (National Guard photo by Staff Sgt. Noel Velez Crespo /released).