Glenn Beck of Fox TV did an hour's programme about Hayek's The Road to Serfdom, which promptly shot up to No 1 on Amazon. Now we find that the University of Chicago Press has sold out of all its copies. Next, Mr Beck will be talking about Ayn Rand's Atlas Shrugged. Just the preview of that has pushed the book up into the top 30 on Amazon. Wouldn't it be nice if our TV presenters did something useful like that?