nerve gases

Pentagon Allowed To Keep Chemical Weapons Tests On US Troops Secret

The Pentagon conducted a series of secret chemical and biological weapons tests on military personnel in the 1960s and 1970s. Veterans groups and members of Congress are demanding to know exactly what happened – and who has suffered. (Jae C. Hong/AP)
Back in the 1960s and 1970s, the Pentagon conducted multiple secret tests of chemical and biological weapons, deliberately exposing some 6,000 US troops to nerve gases and various bacterial toxins, to “develop a response plan” in case US troops were ever attacked by chemical weapons.