Chemtrails, trails of aerosolized chemicals secretly released from aircraft over civilian populations, were dispersed without consent or warning over US cities and towns in the early 1950s.
The US Army Chemical Corps conducted Operation LAC(Large Area Coverage), a program to test what it would be like to drop extremely dangerous bioweapons over enemy cities by dropping less dangerous carcinogens like zinc cadmium sulfide(ZnCdS), over US civilian populations without knowledge or consent, and without following up on the long-term health effects of dropping ZnCdS on US civilian populations.
NIH recommends the Army conduct tests on the toxicity of ZnCdS since it can get stuck in the lungs
The Army was like, nah.
YSK because as nonsensical as some later chemtrail theories became, the conspiracy of secret chemicals dropped from aircraft onto US civilians without knowledge or consent did occur, according to the US government and military branches that conducted the tests.
"It's literally just a cloud"
those "clouds" released over civilian populations in operation large area coverage without knowledge or consent were composed of nickel cadmium sulfide, a carcinogen.
you have no evidence refuting the documented historical fact of Operation Large Area Coverage, and I will have to remove your post for disinformation.