Longtime readers will recall my esteem for the periodic conversations between by Glenn Loury of Brown University and John McWhorter of Columbia University. Their latest subject is policing in the wake of events and protests in Ferguson, Missouri. As usual, their civil exchange is characterized by a searching frankness that I find rare, whether I agree or disagree with a given argument or characterization.

Scroll down here to find their past conversations.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.