U.S. United Nations ambassador Adlai Stevenson (R) and Soviet ambassador Valerian Zorin (L) turn to look at display of aerial photos brought into the Security Council by the United States. The pictures showed Soviet missile bases in Cuba. The U.S. challenged Russia to deny that it had supplied them. Also looking at the display are Dr. Mahmound Riad of the United Arab Republic (center left) and Sir Patrick Dean of Great Britain (center right).