On today's Gist, London's enviable crime wave.

Plus, what will we think of the Obama presidency in 50 years? Julian Zelizer set out to get really smart people to "take a first cut" at the Obama legacy on an array of issues. One person from his brain trust is Peniel Joseph, who surveys the Obama administration's work on criminal justice. Their book is The Presidency of Barack Obama: A First Historical Assessment.

In the Spiel, why Mike rejects both tribes' arguments on the Atlantic's firing of conservative writer Kevin Williamson.

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