For years, a core part of the U.S. mission in Afghanistan has been training new police officers. But then some trainees started brutally killing Americans. Jessica Stone talks to American soldiers whose friends turned against them.
On October 2, 2009 in Andar, a dusty village overlooking one of the most dangerous roads in Eastern Afghanistan, Captain Tyler Kurth, 26, assembled his men and about 10 Afghan National Police officers.
