Librarian of Congress James H. Billington engages noted author and historian David McCullough in a discussion on John Adams.

Speaker Biography: James H. Billington is the 13th Librarian of the United States Congress.

Speaker Biography: David McCullough is an American author, narrator, historian, and lecturer. He is a two-time winner of the Pulitzer Prize and the National Book Award and a recipient of the Presidential Medal of Freedom, the United States' highest civilian award.

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