WASHINGTON – U.S. Secretary of State Hillary Clinton, right, and visiting Afghan Foreign Minister Zalmai Rassoul hold a press briefing at the Department of State in Washington D.C., capital of the United States, March 21, 2012. Clinton on Wednesday expressed “deep regret” over the Afghan shooting incident in which a U.S. soldier killed 16 Afghan civilians, including women and children. <Photo: Xinhua/Zhang Jun>
