Army Staff Sgt. Cushman ensures all chaplain candidates exit the chemical, biological, radiological and nuclear defense chamber after receiving a small dose of CS gas during training on Fort Jackson, S.C., May 27, 2015. Army Staff Sgt. Cushman ensures all chaplain candidates exit the chemical, biological, radiological and nuclear defense chamber after receiving a small dose of CS gas during training on Fort Jackson, S.C., May 27, 2015. SHARE: Download: Full Size (2 MB) Tags: Photo Essays Credit: VIRIN: 465263-R-DFO22-238.jpg Photo Gallery