Its not just the CIA its almost everyone else at the time. I just finished Rise and Kill first, a book on Mossad's targeted killings ops. Its full of really silly and clumsy stuff. My favorite story from the book is that back in the 60's Mossad tried to do the Manchurian candidate routine with a PLO guy, they hired a hypnotist and gave it a few months. The PLO dude eventually got smart, started playing along, acting as if he got hypnotized and they believed it and let him go with a gun. Once he crossed Israel, he handed his gun to his PLO folks and told them about it. Intel agencies back in the day were more like startups.