Reading In Retrospect: The Tragedy and Lessons of Vietnam by Robert McNamara, the secretary of defense under JFK and Johnson. He stopped the Cuban Missile Crisis but spent many years of his life regretting his actions or inaction in Vietnam. The book speaks about the mistakes and misjudgments made by policymakers, including himself, that led to the escalation of the Vietnam War and its tragic consequences. Eventually he went on to run WorldBank but the Vietnam war kept hounding him. I thought it's interesting that he started off as a statistics professor from Harvard. I may not agree with the book in depth but it's interesting to understand the perspective of decision making and complexity of war laced with lack of tech at that time.