unfortunately, has been going on since the 1950s. they've probably gotten better at it. Some fuckery was exposed in the 70s (see link if interested) but there was no real accountability. I think they got better at hiding their activities. I laugh every time I hear 'it's not the crime, it's the cover-up' as if these fuckers are going to get caught. indeed it is the cover-up that matters …
https://nsarchive.gwu.edu/project/chile-documentation-project