SO ON THE PLANE BACK HOME I read an advance copy of Mark Levin’s Ameritopia: The Unmaking of America. It’s a followup to his bestseller Liberty and Tyranny, which helped to kickstart the Tea Party movement. It’s an excellent book, and you’ll want to pre-order it. But what’s sad is that it’s largely about stuff — a basic grounding in political history and philosophy from Plato to Locke to Marx –that every high-school graduate ought to know. But few do, these days.