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Like many others, I watched in horrified fascination last night as this livestream from Ferguson, Missouri, played out online. (Thanks to Sara Rosenbaum, whose Twitter stream alerted me to it.) With cable news slow off the mark, the amateur footage of police firing rubber bullets at peaceful protesters was all we had.

But live images from a chaotic scene on the ground are no substitute for context and analysis. As we try to make sense of the Michael Brown shooting and the community and police response, I want to call your attention to several pieces that have helped me understand what’s going on: