Head of the National Security Archive Tom Blanton helped research "The Cuban Missile Crisis, 1962," scheduled for release today, thirty years after the incident. In the book, newly released documents and top-secret files reveal how close the U.S. came to a nuclear entanglement. In 1987, the National Security Archive filed suit against the U.S. government for failing to produce the documents they requested. Since then, there has been more compliance with the archive, especially since the Russian government has agreed to allow the U.S. to release the Kennedy-Krushchev letters.