Yates Documentary is used as evidence in the prosecution of the Guatemalan general [that Reagan supported] for genocide. The film is available on streaming PBS in spite of republican efforts to defund it. It's shown worldwide, so everyone sees what we were complicit in. The terrorist training camp in Georgia that trained the killing squads ought to be held liable eventually.
Consortium News has been the only source I have found that has covered the genocide in the past. There have been other prosecutions for the 1980s crimes before, with the help of international attention.