leaders will decide whether u.s. troops in country will have immunity from local prosecution, continuing sticking point in negotiations over the future of the u.s. military presence. >> certainly it's topical and it's right in the cross hairs of how well the united states can negotiate. >> reporter: the u.s. mill their has taken steps to reduce civilian casualty from reducing the number of air strings to setting up a tracking cell. the military credits those records of reducing -- but wolf, an alleged crime like this one, particular as these negotiations are going on, has the potential to be devastating. >> that video is brutal. thanks very much. a landmark vote in the u.s. senate, a big win for gay rights advocates, a reminder to republicans that their party is deeply divided, another reason to wonder what the gop may have learned from the election results this week. let's go up to capitol hill, or