John Glenn captured the hearts and imagination of many Americans as the first US astronaut to orbit the earth, and he had extensive combat experience as a pilot before that. Prolific and celebrated author Jeff Shesol joins us to talk about Glenn, not just about his place in the history of the Cold War, but in deeply personal terms. He explores all this in his new book: 'Mercury Rising

John Glenn, John Kennedy, and the New Battleground of the Cold War.'