Recent high-profile killings of black people by local police are the just latest in a year that’s already seen such incidents more than 200 times. These two differ in many ways: police video has been released in Tulsa, but not in Charlotte.
Tulsa’s been peaceful, while there’s been violence in Charlotte. But what might be most important is one thing they share: black communities that don’t believe official explanations, and that don’t trust local police. We talk about what that reveals about American history and contemporary reality -- and the challenge posed to Hillary Clinton and Donald Trump.