Civil Defense

Civil Defense is an effort designed to help in case of emergencies and disasters.

Day 5
During Day 5, Civil Defense gave CTU's Lynn McGill new estimates of casualties for the release of Sentox nerve gas in Los Angeles. The new estimates said that each canister could generate a kill zone of 1 to 3 square miles. Since the terrorists had 20 canisters in their possession, the casualties could've mounted to approximately a million.