Book excerpt: “The scientists who made the nuclear bomb are the focus of this detailed, engrossing history of one of the greatest scientific discoveries of the 20th century.” —Publishers Weekly The story of the twentieth century is largely the story of the power of science and technology. Within that story is the incredible tale of the human conflict between Robert Oppenheimer, Ernest Lawrence, and Edward Teller—the scientists most responsible for the advent of weapons of mass destruction. The story of these three men, builders of the atomic and hydrogen bombs, is fundamentally about loyalty—to country, to science, and to each other—and about the wrenching choices that had to be made when these allegiances came into conflict. In Brotherhood of the Bomb, Gregg Herken gives us the behind-the-scenes account based upon a decade of research, interviews, and newly released Freedom of Information Act and Russian documents.