Almighty Courage, resistance, and existential peril in the nuclear age.

**A Washington Post "Notable Nonfiction Book of 2016"** ON A TRANQUIL SUMMER NIGHT in July 2012, a trio of peace activists infiltrated the Y-12 National Security Complex in Oak Ridge, Tennessee. Nicknamed the "Fort Knox of Uranium," Y-12 was supposedly one of the most secure sites in the world, a bastion of warhead parts and hundreds of tons of highly enriched uranium-enough to power thousands of nuclear bombs. The three activists-a house pain...