i understand that there is some plausible deniability around the tuskegee experiment, and it has even been Officially Debunked By The Internet.

but, the story around tuskegee has changed over time, and the denials should not be taken absolutely.

the story of experimentation in guatemala doesn't have the same plausible deniability attached to it. or, at least not yet. and, you should ask the question: if you believe they did it in guatemala, why don't you believe they did it in alabama?

https://www.theguardian.com/world/2011/jun/08/guatemala-victims-us-syphilis-study