In 1946, just months after atomic bombs were dropped on Hiroshima and Nagasaki,the scientists who had developed nuclear technology came together to express their concerns and thoughts about the nuclear age they had unleashed. In a small, urgent book of essays, legends including Niels Bohr, Albert Einstein, and Robert Oppenheimer try to help readers understand the magnitude of their scientific breakthrough, fret openly about the implications for world policy, and caution, in the words of Nobel Prize-winning chemist Harold C. Urey, thatThere Is No Defense. The original edition ofOne World or Nonesold 100,000 copies and was a New York Times bestseller. Today, with the nuclear issue front and center once more, the book is as timely as ever. Contributors: H.H. Arnold Niels Bohr Arthur H. Compton E.U. Condon Albert Einstein The Federation of American (Atomic) Scientists Irving Langmuir Walter Lippmann Philip Morrison J.R. Oppenheimer Richard Rhodes Louis N. Ridenour Frederick Seitz and Hans Bethe Harlow Shapley Leo Szilard Harold Urey Eugene P. Wigner Gale Young