FERGUSON, MO – AUGUST 17: Police fire tear gas at demonstrators protesting the shooting of Michael Brown after they refused to honor the midnight curfew on August 17, 2014 in Ferguson, Missouri. The curfew was imposed on Saturday in an attempt to reign in the violence that has erupted nearly every night in the suburban St. Louis town since the shooting death of teenager Michael Brown by a Ferguson police officer on August 9. (Photo by Scott Olson/Getty Images)
