Book excerpt: This Letort Paper provides a detailed chronology and analysis of the intelligence failures and successes of the Cuban Missile Crisis. The author, Mr. Kenneth Absher, contends that, when our national security is at stake, the United States should not hesitate to undertake risky intelligence collection operations, including espionage, to penetrate our adversary’s deceptions. At the same time, the United States must also understand that our adversary may not believe the gravity of our policy warnings or may not allow its own agenda to be influenced by U.S. diplomatic pressure. As both a student of and key participant in the events of the crisis, the author is able to provide in-depth analysis of the failures and successes of the national intelligence community and executive leadership during the build-up to the confrontation, and the risky but successful actions which led to its peaceful settlement. From his analysis, the author suggests considerations relevant to the collection, analysis, and use of intelligence which have continuing application.