(Posted by John.)

You all remember that, right? The foreign policy that said states who harbor terrorists are as bad as the terrorists themselves, and deserve nothing less than unilateral, pre-emptive war?

Unsurprisingly, it turns out that this policy was a bad idea.

Ezra Klein is a former Prospect writer and current editor-in-chief at Vox. His work has appeared in the LA Times, The Guardian, The Washington Monthly, The New Republic, Slate, and The Columbia Journalism Review. He’s been a commentator on MSNBC, CNN, NPR, and more.