A South Africa anti riot policeman reacts towards a student after masked students enter a building of the Witwatersrand University in Johannesburg on October 10, 2016 to disrupt classes in a bid to shut down the campus. Student protesters at South...
Activists speak near the area where riots broke out after the funeral for Freddie Gray last year June 23, 2016 in Baltimore, Maryland. Baltimore policeman Caesar Goodson, facing the most serious charges in the death of African-American Freddie Gray, was acquitted Thursday in a case that sparked riots and fueled a national debate over how US police treat young black men.
A Chinese paramilitary policeman reacts outside the opening session of the Chinese Communist Party's five-yearly Congress at the Great Hall of the People in Beijing on November 8, 2012. The week-long congress, held every five years, will end with a transition of power to Vice President Xi Jinping, who will govern for the coming decade amid growing pressure for reform of the communist regime's iron-clad grip on power. (Photo by Mark Ralston/AFP Photo)
Photographer: Anja Niedringhaus, 2011 On June 4, 2011, injured U.S. Marine Cpl. Burness Britt reacts after being lifted onto a medevac helicopter. German photographer Anja Niedringhaus, 48, was killed on April 4, 2014 when an Afghan policeman opened fire while they were sitting in their car in eastern Afghanistan.