Secrets of War

Chemical and Biological Weapons (1x30)

: 20, 1999

This is a close look at the deadliest of secret weapons, chemical and biological agents. From mustard gas artillery shells used along the trenches in WWI to the US gas stockpiles in the Pacific during WWII and the recent Iraqi gassing of the Kurds, chemical warfare has long been shrouded in a veil of secrecy.