The other day, in response to a hedge fund manager who asked him when he would stop whacking Wall Street like a piñata, President Obama said, "If you are making $1 billion a year after a very bad financial crisis where 8 million people lost their jobs and small businesses can't get loans, then I think that you shouldn't be feeling put upon." The same day, the New York Times published a column by Nobel laureate economist Paul Krugman under the headline "The Angry Rich and Taxes," referring to what Krugman called "belligerent sense of entitlement" among "high-income Americans, the...