Can Shootings, Protests Erode Americans' Trust in Police?

Americans' confidence in their police has grown in the past year, but law-enforcement advocates and some social scientists worry that may change because of a recent spate of police killings that could deal a blow to public trust. Public trust in police rebounded this year after declining to a 22-year low last year following a similar string of highly publicized shootings of blacks by white police officers, some of which led to protests around the country, according to the Gallup...

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