The My Lai massacre, Watergate, CIA domestic wiretapping, Abu Ghraib, and more — Sy Hersh has broken or advanced some of the biggest and most horrifying stories of our time, and his memoir captures his radical tenacity in gripping detail. He found out early in his career as a reporter at the Pentagon that some in the government are more loyal to the Constitution than to whoever is in power, and he amplified those secret dissenters in service of the public interest for decades.