A president read a book

After 1945, every subsequent president knew what nuclear holocaust looked like and thus to avoid it. How they did so can be instructive. For example: President John F. Kennedy’s thoughtful if lucky handling of the Cuban missile crisis, warding off nuclear war by ignoring his more trigger-happy military advisers. Having just read Barbara Tuchman’s book “The Guns of August,” about the madcap rush into World War I, Kennedy said, “I am not going to follow a course which will allow anyone to write a comparable book about this time, ‘The Missiles of October.’
Sarah Vowell, The Dangers of an Incurious President, https://www.nytimes.com/2017/08/09/opinion/trump-fire-fury-north-korea.html