CIA-trained Afghan forces kill Afghan civilians

"A series of home raids by C.I.A.-trained Afghan counterterrorism forces in the last month resulted in the deaths of at least six innocent civilians," "The C.I.A. has trained thousands of Afghan forces for such missions — around 3,500 in the Khost Protection Force alone. But from the start, some senior Afghan officials have considered them a problem, accused of human rights abuses and seen as largely unaccountable."