In 1930, police used tear gas to disperse a group of unemployed demonstrators in front of the White House. Announcer: Washington became a battleground. Narrator: Two years later, President Herbert ...

C.- Police routed 10,000 people- some of them spectators- in a rally of militant antiwar groups here Saturday afternoon, driving them from in front of the Justice Department with tear gas and clubs.

Narrator: These Army infantry recruits are being exposed to CS gas, more commonly known as tear gas to experience ... This particular group of recruits was in week one of training.

after exposure to tear gas. This illness is often linked to exposure to dioxins, a group of chemicals that are categorised by the World Health Organisation (WHO) as highly toxic. Young Post ...