See also: Japanese-American intermnent camps during WWII.
100,000+ American citizens stripped of any and all rights they had, thrown in prison without trial, all because of who their ancestors were.

Or the crack epidemic being caused by the CIA, and then the subsequent murder of Gary Webb who exposed it.

mentioned above:

• cia crack epidemic
• gary webb “suicide” (suspicious anyway, but gov. prevented him from getting a job after controversial report)
• japanese american internment camps (also suggest reading the book Farewell to Manzanar)
• MK-Ultra (TL;DR: gov. believed mind control existed for some fucking reason and tortured human subjects w/ extremely dangerous drugs (i.e. LSD) to ‘combat’ it)
• MK-Naomi
• tuskegee experiment
• operation mockingbird
• poisoning foster kids
• operation northwoods (wikipedia)

see also:

• kent state shooting
  
• manhattan project: injection of plutonium into civilians
• manhattan project: dump sites (not sure if ment. above in poisoning MO)
  
• manhattan project: hiroshima/nagasaki (suggest book Phoenix Rising)
• flint, michigan
• poisoning industrial alcohol supply (during prohibition, punished “lawbreakers”, as if that’s a crime that warrants execution. 1927 archive page, requires subscription // snopes, if you trust that)
• operation paperclip (nazi recruitment, suggest reading cited book)
• Trails of Tears (haha and we’re STILL stealing reservation land! related, modern)
• MODERN: ICE immigrant cruelty, entrapment
• MODERN: HIV/AIDS epidemic
• MODERN: human rights disaster of hurricane katrina
• MODERN: dakota access pipeline spills (and other pipeline spills) (remember #NoDAPL?)
• i dont even have sources for this bc theres just so much fucking involved in it, but start here i guess for the syrian oil warfare
• theres like so much more so feel free to add

idk if this is exactly related but another fucked up thing the US government did is that they granted immunity to nazis who conducted fatal human experiments so they could use the data obtained from them. Just look up Unit 731 on Wikipedia and you’ll be able to read about it (some of the experiments in the “Activities” tab are extremely graphic. just a warning.)

Also don’t forget that they looked to undermine and infiltrate civil rights movements. The FBI sent death threats and suicide baiting letters to MLK and they wire tapped him as well. FBI also sent agents into the Black Panthers and also Marcus Garvey’s organization to break up the group and sew discord.