Photographer Scott Olson is arrested by a highway patrol officer during a protest for the shooting death of Michael Brown, in Ferguson

Getty Images photographer Scott Olson (center) is arrested by a highway patrol officer during a protest for the shooting death of Michael Brown, in Ferguson, Missouri August 18, 2014. He was arrested because police required media to be within certain areas, media quoted another journalist as saying. Missouri Governor Jay Nixon lifted the curfew for the St. Louis suburb of Ferguson on Monday and began deploying National Guard troops to help quell days of rioting and looting spurred by the fatal shooting of the black unarmed teenager by a white policeman.    REUTERS/Joshua Lott.

Getty Images photographer Scott Olson (C) is arrested by a highway patrol officer during a protest for the shooting death of Michael Brown, in Ferguson, Missouri August 18, 2014. He was arrested because police required media to be within certain areas, media quoted another journalist as saying. Missouri Governor Jay Nixon lifted the curfew for the St. Louis suburb of Ferguson on Monday and began deploying National Guard troops to help quell days of rioting and looting spurred by the fatal shooting of the black unarmed teenager by a white policeman. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW CIVIL UNREST MEDIA) - RTR42VPK