UNITED NATIONS — Eighteen countries, including five of the world's leading arms exporters, ratified a landmark treaty regulating the multibillion-dollar global arms trade on Wednesday, giving a significant boost to the campaign for the treaty's entry into force. The ambassadors of the 18 countries handed over the documents at a U.N. ceremony on the first anniversary of the General Assembly's adoption of the Arms Trade Treaty, which is aimed at stemming the global... (GunPolicy.org)