One of the more fascinating revelations in the Central Intelligence Agency’s archives is the fact that, on two separate occasions, the Agency has had the White House bury time capsules of CIA materials in the walls of their buildings. The first box was jokingly referred to by Director Allen Dulles as containing “secrets,” and that came amazingly close to being true. The second, placed by one of Dulles’ successors, was nearly a plot device in a spy thriller, thanks to a suggestion that they place the true names of every Agency employee within the box.