Pinker on Violence (3)

Angels update. I'm making good progress on Better Angels of Our Nature and starting to be a fan.  One of the very likable things about Steven Pinker is that he cheerfully rebels against political correctness and academic fads.  He's not a true conservative, but doesn't mind sometimes sounding like one.  Why did crime rise in the 60s and fall in the 90s?  He doesn't mind putting some of the blame