Ferguson Police Chief Thomas Jackson answers questions from the media about his office's handling of the release of information following the shooting of Michael Brown in Ferguson, Missouri in this August 15, 2014 file photo. Missouri authorities are drawing up contingency plans and seeking intelligence from U.S. police departments on out-of-state agitators, fearing that fresh riots could erupt if a grand jury does not indict a white officer for killing a black teen. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS)
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