Before the outbreak of war, Rosbaud hurried into print Otto Hahn's work on nuclear fission in the German science journal "Naturwissenschaften" in January 1939. Paul Rosbaud realized the vast destructive potential of what Hahn, Strassmann, and Meitner had discovered, and he was acutely conscious that the fundamental research had been done in Germany. He wanted the rest of the world to know of the significance of the work at least as soon as the Nazi planners did. By rushing into print with Hahn's manuscript he was able to alert the world community of physicists.