In 2009, Nicholas Heien and a friend were traveling down a North Carolina highway when they were pulled over for having a broken tail light. A subsequent search of the car found a plastic bag containing cocaine.
Relatives of victims of gun violence attend a press conference honoring the second anniversary of the Sandy Hook Elementary School shootings in Washington, D.C. on Dec. 10, 2014.
Saul Loeb/AFP/Getty Images
Michael Bell Sr. (center) and his family stand near one of the billboards they bought in a campaign to bring awareness to internal police investigations. Bell's son was shot and killed by police in Kenosha, Wis.
Courtesy of the Bell family
Police wearing riot gear walk toward a man with his hands raised Aug. 11 in Ferguson, Mo. Renewed calls for police departments to hire more minorities have followed the shooting there of a black man by a white police officer.
A member of the Saudi border guards mans a machine gun at the border with Iraq in July. Since the so-called Islamic State launched its offensive this summer in Iraq, Saudi Arabia has sent thousands of troops to the region.