Three dozen arms control and human rights groups have written to U.S. President Barack Obama ahead of new arms-trade negotiations at the United Nations next month, urging him to back a tough treaty that would end loopholes in international weapons sales. Arms control campaigners say one person every minute dies worldwide as a result of armed violence and a convention is needed to prevent the unregulated and illicit flow of weapons into conflict zones and fueling wars... (GunPolicy.org)