An unknown man speaks at the United Nations Conference on International Organizations, held at the San Francisco, California Opera House. President Harry S. Truman is scheduled to deliver the closing address to hundreds of delegates from nations all over the world who met and drew up a United Nations Charter to insure world peace in the future. Behind the speaker, from left to right, are: Alger Hiss, Secretary of State Edward Stettinus, President Truman, and an unknown person. Naval Aide Captain James Vardaman is sitting at the far right.