UNITED NATIONS — The world's top weapons exporters agreed to back negotiations on a global treaty to regulate the world's $55 billion arms trade, but Russia refused to show support, diplomats said on Thursday. The deal came after negotiators from four of the top arms traders — the United States, Britain, France and Germany overcame sharp disagreements on the wording of a U.N. General Assembly resolution that will guide negotiations on a treaty, which were to begin... (GunPolicy.org)