Cpl. Jerry H. Robinson, a search and rescue Marine with the Chemical Biological Incident Response Force, walks through a simulated disaster area searching for role-playing victims during Exercise Scarlet Response in Guardian Center, Ga., Aug. 17. The Marines responded to a simulated nuclear blast, which stopped traffic and contaminated the town during a 48-hour exercise. (U.S. Marine Corps photo by Pfc. Dylan Bowyer/Released) - Cpl. Jerry H. Robinson, a search and rescue Marine with the Chemical Biological Incident Response Force, walks through a simulated disaster area searching for role-playing victims during Exercise Scarlet Response in Guardian Center, Ga., Aug. 17. The Marines responded to a simulated nuclear blast, which stopped traffic and contaminated the town during a 48-hour exercise. (U.S. Marine Corps photo by Pfc. Dylan Bowyer/Released)