In 1971, Daniel Ellsberg shook the United States to its foundations when he leaked top-secret Pentagon documents to the New York Times that showed how five Presidents consistently lied about the Vietnam War. Consequently, National Security Advisor Henry Kissinger called Ellsberg "the most dangerous man in America," who "had to be stopped at all costs." But Ellsberg wasn't stopped. Facing 115 years in prison on espionage and conspiracy charges, he fought back...