"We go to Kabul to speak with an Afghan peace activist about the shooting spree by a U.S. Army sergeant in Afghanistan, which killed 16 Afghan civilians, nine of them children. Calls for a more rapid withdrawal of troops from Afghanistan have escalated after the U.S. soldier reportedly walked more than a mile from his base, breaking into three separate houses to attack families as they slept. Villagers say he then gathered 11 bodies and set them on fire, including the bodies of four girls younger than six. The attack comes as the United States and Afghanistan are negotiating the Strategic Partnership Agreement, the framework for U.S. involvement in Afghanistan after foreign combat troops leave at the end of 2014. "We feel that, surely, governments need to resolve this conflict through diplomacy and move away from the failed military strategy that has resulted in all that we are witnessing today," says the Kabul-based peace activist who goes by the name "Hakim." He is the coordinator for Afghan Youth Peace Volunteers....."