 The Chemical Corps continued to support the force through the use of incendiary weapons, such as napalm, and riot control measures, among other missions.As the war progressed into the late 1960s, public sentiment against the Chemical Corps increased because of the Army's continued use of herbicides, criticized in the press as being against the Geneva Protocol, napalm, and riot control agents.Besides supplying flame weapons, and preparing for any eventuality of weapons of mass destruction, the Vietnam era Chemical Corps also developed "people sniffers", a type of personnel detector.