been drinking alcohol the night of the shootings with two other troops, both of whom are now facing disciplinary action. the military's investigation into the incident coincides with two new challenges to the u.s. strategy in afghanistan. president karzai is demanding that nato pull back its troops from rural areas as part of a quicker overall withdrawal. he's also calling for the coalition to transfer security to afghan forces in 2013 instead of 2014. meanwhile, the taliban announced it is halting peace talks with american officials. so much there to discuss. bottom line, though. let's just touch on the repeat tours of duty whether or not whatever comes out to bear in this trial. >> listen, every member of the military and their families have been burdened, it doesn't matter in the context of this case. what matters was, was he guilty of shooting and killing 16 unarmed villagers.