A protestor holding his hands up chants "Hands up, don't shoot" as SWAT police unit stands guard during protests against police killing of Michael Brown in Ferguson, Missouri, the United States, around midnight of Aug. 18, 2014. On Aug. 9, 18-year-old African American Michael Brown was shot dead by police in Ferguson, sparking continuous protests in the town where most of the population is black. [Xinhua]