KQED PBS NewsHour August 23, 2011
i.m.f. head dominique strauss- kahn, as prosecutors filed to dismiss sexual assault charges. >> brown: from pakistan, fred de sam lazro reports on an appeal for calm in a city divided by ethnic violence. >> today karachi's neighborhoods, politics and much of its strife happen along ethnic lines. >> suarez: and judy woodruff examines one organization's push to host an online national political convention and put another candidate on the presidential ballot. >> this isn't a third party. this is a second nominating process. the vision here is that in november 2012 when american voters g...