Scientists who listened to police officers speaking to motorists they've pulled over heard differences in the tone of voice used with Black and white drivers.

Police cars are usually black and white but don’t have to be. Here is a Riverside County Sheriff’s Department squad car on patrol in Moreno Valley on May 19, 2017.

The fact that Black and white Americans have different views on the police are not accidents. This reality is built on a long history of police targeting people of color.