riot cops How does tear gas actually work? Thom Dunn

Tear gas Portland mayor Ted Wheeler tear-gassed by federal officers Rob Beschizza

living under authoritarianism What to do if you're caught up in a tear gas attack Séamus Bellamy

forensic architecture Triple Chaser: a short documentary that uses machine learning to document tear gas use against civilians, calling out "philanthropist" Warren Kanders for his company's war-crimes Cory Doctorow