Well, I must confess that I did not give very serious thought to the problem before that, but I liked it. It was impossible to do anything about that without asking Oppenheimer. So I did, and Oppenheimer was very determined on that point- What does Szilárd, and for that matter what does James Franck, who was in that with Szilárd- what do they know about the Japanese? About how possibilities of peace work? We should do nothing about that. Here is something that in retrospect I regret. The whole question of using the atomic bomb actually was something that bothered me and it either bothered me too much or not enough. I did not think about it in a sufficiently serious manner. I did not say to Oppenheimer what I should have said- It may not be our business to determine how to use the atomic bomb. It is our business to discuss and present the alternatives: if it is not used, how can it be demonstrated and how effectively it can be demonstrated. Perhaps I should have said that. I didn't. Oppenheimer persuaded me not to sign and I wrote a letter in that sense to Szilárd. Later I found out that Washington did ask the leading physicists for advice. In the chair: Oppenheimer.