ROGER SIMON reviews David Mamet’s new book. “With all the talk of Hollywood liberalism — the endless leftist blather from Sean Penn and Tim Robbins, the cozying up to Castro and Chavez by Oliver Stone and Danny Glover, the jejune Iranian peace-making by Annette Bening and Alfre Woodard, etc., etc — it’s fascinating that the two leading playwrights in the English language (the smart guys) — Tom Stoppard and David Mamet — identify as conservative/libertarians.”