"You all know that the development of this frightful mean of destruction was urgently demanded by the perils of the wartime situation. Simultaneously, however, a new perilous situation has been created whose shadow is upon us continually. One cannot defend oneself effectively anymore."
Albert Einstein German-born American physicist Albert Einstein is best known for his work on relativity, but he was also an outspoken political activist. After World War II, he became a strong advocate for disarmament. In this excerpt, he discusses the dangers faced by the world following the invention of the atomic bomb.