Hunt's memoir, "American Spy: My Secret History in the CIA, Watergate, and Beyond", was ghost-written by Greg Aunapu and published by John Wiley & Sons in March 2007. According to the Hunt Literary Estate, Hunt had intended to write an update to his 1974 autobiography "Undercover" and supplement this edition with post-9/11 reflections, but by the time he had embarked on the project, he was too ill to continue. This prompted John Wiley & Sons to search for and hire a ghost writer to write the book in its entirety. According to St. John Hunt, it was he who suggested to his father the idea of a memoir to reveal what he knew about the Kennedy assassination, but the Hunt Literary Estate refutes this as scurrilous.