https://oig.justice.gov/sites/default/files/legacy/special/9712/appa.htm US gov investigation excerpts

https://nsarchive2.gwu.edu/NSAEBB/NSAEBB2/index.html in depth university papers

https://www.cia.gov/readingroom/docs/CIA-RDP90-00806R000201090033-3.pdf leaked CIA docs

https://www.britannica.com/topic/contra-Nicaraguan-counterrevolutionary lazy brittanica article but read it

Coca cola death squads? Operation Gladio? Operation Paperclip? Pinochet? All exist only with US subversion