A critic of the New York City Police Department stop-and-frisk policy wears a shirt outlining a citizen's search rights at a City Council meeting in August 2013. The Supreme Court ruled Monday in an unrelated case that even if police stop someone without cause, if a reason is then found to search them, any evidence collected is admissible in court. Spencer Platt/Getty Images hide caption

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Protesters and law enforcement officers face off during a protest outside the Ferguson Police Department in October. Ferguson police statistics show the department arrest blacks at a higher rate than other racial groups — but that disparity is true for police departments across the country. Charles Rex Arbogast/AP hide caption

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Racial Disparities In Arrests Are Prevalent, But Cause Isn't Clear

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Residents look on as Brazilian military police officers patrol Mare, one of the largest complexes of favelas in Rio de Janeiro, Brazil, on March 30. In one of the world's most violent countries, homicide rates are dropping — but only for whites. Mario Tama/Getty Images hide caption

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In Brazil, Race Is A Matter Of Life And Violent Death

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Outside New York City Hall, a policeman watches a protest against racial disparities in marijuana arrests. The majority of those arrested are black or Latino, even though those groups are not more likely to smoke pot. Andrew Burton/Getty Images hide caption

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Brooklyn DA Shifts Stance On Pot, But That Won't Impact NYPD

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