 Well, Sam Greenlee, as you mentioned, he was a real person. He wrote this book. He really was a CIA agent. He was the first black CIA agent, just like that. And The Spook Who Sat By The Door is a great title because it serves a double purpose. Spook is a synonym for – is a slang for spy. It's also a slang for racist term for black people. So him using The Spook Who Sat By The Door, using that word, is actually very clever. But he wrote a book that basically is a how-to manifesto for revolution.