I was just reading about the Gene Hackman movie The Conversation and read that it was partly inspired by Martin Kaiser. Kaiser was a consultant for the FBI, CIA etc and was apparently a master at his game.
He wrote a book that I need to buy and he seems to have a YouTube channel but not much on it, I thought others here might find him interesting.
He wrote a book that I need to buy and he seems to have a YouTube channel but not much on it, I thought others here might find him interesting.