Henry Farrell, Eric Lawrence and John Sides (GWU): Self-Segregation or Deliberation? Blog Readership, Participation and Polarization in American Politics. Want to know if waterboarding is torture? Ask Christopher Hitchens (with video). Years later, Stanley Milgram's shock experiments still provide insight. From Powell's, an interview with Ethan Canin, author of America America. Need press? Repeat: "Green", "sex", "cancer", "secret", "fat" — strategic word selection can catapult an announcement. Clearly the timing was right: An interview with Mark Kurlansky, author of The Last Fish Tale: The Fate of the Atlantic and Survival in Gloucester, America's Oldest Fishing Port and Most Original Town. The 40th anniversary of the nuclear Nonproliferation Treaty finds the NPT more vulnerable—and more vital—than ever. From Scientific American, an interview with Marco Iacoboni on the mirror neuron revolution: Explaining what makes humans social. From Seed, father of cognitive neuroscience Michael Gazzaniga and original New Journalist Tom Wolfe discuss status, free will, the human condition, and "The Interpreter" (and a review of Human: The Science Behind What Makes Us Unique). Just how stupid are we? Pretty stupid, it would seem, when we come across headlines like this: "Homer Simpson, Yes—1st Amendment, "Doh". Simon Blackburn reviews Jim Holt's Stop Me If You've Heard This.