1 of 3 | U.N. Secretary-General António Guterres speaks during an emergency session of the Security Council in New York City, New York, on Sunday. Photo by Eskinder Debebe/U.N. April 15 (UPI) -- The Middle East is facing the real danger of a "devastating full-scale conflict," United Nations head Antonio Guterres warned Sunday night as he called for restraint following Iran's attack on Israel. "The Middle East is on the brink. The people of the region are confronting a real danger of a devastating full-scale conflict. Now is the time to defuse and de-escalate. Now is the time for maximum...