An American soldier killed five other troops inside a psychological counseling center in Baghdad on Monday, the bloodiest case of military fratricide since the start of the Iraq war six years ago.

• 星期一，在巴格达的心理咨询中心，一个美国士兵杀了其他五个军队，这是自六年前开始的伊拉克战争以来最血腥的军人互相残杀。