It wasn’t until 1973 that CIA Director Richard Helms resigned, though he did so only after destroying MK-ULTRA documents. · In 1976 another Congressional Investigation on CIA human experimentation in MK-ULTRA finally led to a 1977 US Senate Pike Committee Investigation, though Congress voted not to publish the dramatic results. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.