Security measures in Ferguson after Grand Jury decision

FERGUSON, UNITED STATES - NOVEMBER 26: National Guard troopers patrol at the police station in Ferguson, Missouri, United States on November 26,2014. The Ferguson Grand Jury decision about Officer Daren Wilson is that he will not be faced with criminal charges for the shooting death of black 18-year old Michael Brown in Ferguson. (Photo by Cem Ozdel/Anadolu Agency/Getty Images)