https://www.justsecurity.org/76595/clearing-the-fog-of-war-s...
Pedanticisim aside, the .mil requires risk assessments up the wazoo for every training event, let alone using CS/OC, and they should have expected this. Hope it deploys and dissipates for 60 year old anything is a bad gamble in the desert, let alone a built up occupied urban area.
Tear gas is largly bromoacetone, not capsacin [2]. Though, CS gases and tear gases can contain mixtures with capsacin AFAIK.
It's funny, except when the police flood urban areas with this stuff. EG: "Seattle Residents Got Tear Gassed in Their Own Apartments" [3]
A SF school added to that list is sad.
Sure though, we can make jokes whenever you cook that you prepared a weapon of war.
[1] https://en.wikipedia.org/wiki/CS_gas
[2] https://en.wikipedia.org/wiki/Tear_gas
[3] https://www.thestranger.com/slog/2020/06/04/43840246/seattle...