Tear gas is banned in international warfare, yet classified as a “riot control agent” that law enforcement can use for crowd control.
“It just doesn’t work well, and it hits the weakest people the most, and causes the most complications in them,” an anesthesiology professor at Duke University said.

Tear Gas Is Way More Dangerous Than Police Let On
In the middle of a respiratory pandemic, law enforcement agencies have used tear gas in especially dangerous ways. The chemical agent also seeps into homes, contaminates food, furniture, skin and surf...