Cass Sunstein is head of something called the "Office of Information and Regulatory Affairs." I've seen enough conspiracy thrillers to know that when someone has so obvious a blandly amorphous federal job description as that, it means he's running some deeply sinister wet-work operation of illegal targeted assassinations in unfriendly nations that the government spooks want to keep off the books and far from prying eyes. Oh, no, wait. Actually, Covert Operative Sunstein passes his day doing more or less what the sign on the door says: He collects information about regulatory affairs. More specifically, he is charged by the...