8/24/2012 - A U.S. Air Force Airman from the 18th Aerospace Medicine Squadron's Bioenvironmental Engineering Flight fills a substance detection tray with a test chemical to identify an unknown substance during an emergency management exercise as part of Beverly High 12-5, a local operational readiness exercise on Kadena Air Base, Japan, Aug. 22, 2012. The EME tested Kadena Airmen's ability to respond, properly contain and decontaminate a possible anthrax threat on the base. (U.S. Air Force photo/Senior Airman Maeson L. Elleman)

8/24/2012 - A U.S. Air Force Airman from the 18th Aerospace Medicine Squadron's Bioenvironmental Engineering Flight swabs a sample of an unknown substance found in a letter addressed to a former president during an emergency management exercise as part of Beverly High 12-5, a local operational readiness exercise on Kadena Air Base, Japan, Aug. 22, 2012. Kadena's Airmen use LOREs to test themselves in the ability to survive and operate under various conditions in order to prepare them for future contingencies. (U.S. Air Force photo/Senior Airman Maeson L. Elleman)

8/24/2012 - (From left to right) U.S. Air Force Master Sgt. Bradley Takushi, Master Sgt. Joseph Fruge, and Tech. Sgt. Lauren Berger, consult a map to initiate containment of an exposed area during an emergency management exercise as part of Beverly High 12-5, a local operational readiness exercise on Kadena Air Base, Japan, Aug. 22, 2012. The EME tested Kadena Airmen's ability to respond, properly contain and decontaminate a possible anthrax threat on the base. Takushi and Berger are both assigned to the 18th Security Forces Squadron, while Fruge is assigned to the 18th Civil Engineer Squadron Fire Department. (U.S. Air Force photo/Senior Airman Maeson L. Elleman)

8/24/2012 - A U.S. Air Force Airman from the 18th Aerospace Medicine Squadron's Bioenvironmental Engineering Flight radios in his team's status during an emergency management exercise as part of Beverly High 12-5, a local operational readiness exercise on Kadena Air Base, Japan, Aug. 22, 2012. The EME tested Kadena Airmen's ability to respond, properly contain and decontaminate a possible anthrax threat on the base. (U.S. Air Force photo/Senior Airman Maeson L. Elleman)