Did You Know?
Explaining the meaning behind "deep-cover" in deep-cover agent: "Oh it's laughable... What it means is that you have an ostensible occupation, a cover job, and that you don't go about introducing yourself as a CIA agent. You don't work out of an embassy, in fact you don't go near an embassy, and all of your meetings and reporting take place clandestinely."
Originally intended to write a non-fiction book about the Kennedy Assassination, but the theory he posited was so controversial that his publisher told him no one would touch the book. Instead McCarry presented the assassination theory in fictional form in his novel "The Tears of Autumn," which became a best-seller.