uniting cultures religions east and west. but this has been a very turbulent summer for turkish politics. as you can see here, we have police here, riot police, blocking off pedestrian about to one of the busiest squares in the heart of the city for fear of possible anti-protests. is this a scene that's played itself out again and again this summer. raising questions about turkey's human rights record. even as the international olympic committee tries to decide whether or not istanbul should host the 2020 olympic games. back to you suzanne. to beijing where dennis rodman has arrived after a mysterious visit to north korea. david kin zi is in the beijing airport. >> reporter: dennis rodman arrived to beijing to a media frenzy. rodman meant with kim jong-un the young dictator in pyongyang.