The letter went back to Szilárd's pocket and I have secondhand information what then happened. Szilárd did not send the letter to Roosevelt and indeed, had he done so, probably the letter would have been stuck on the desk of one of the secretaries. Instead, Szilárd gave the letter to a friend, a banker, who knew the President well. His name was Sachs. And how this happened, I don't know, it happened and it's important. Sachs at the time did not give the letter to Roosevelt, probably he could not get to him, until a few weeks between the beginning of August and the second half of October. And that was a fortunate time, because at that time Poland had been occupied by the joint effort of the Nazis and the Soviets. And by that time, Roosevelt was really and completely aware of the worldwide danger. So he promptly called Briggs - Doctor Briggs - the Head of the Bureau of Standards- Call a conference and make a decision, recommend a decision. Szilárd was invited, Wigner was invited, I also was invited but my main function was something else. I was to get Fermi to come to a conference and I did.