Just in time for Warren Buffett’s release of his 2014 annual letter to shareholders this coming Saturday, Oracle-watchers last week were privy to another iteration of the “Buffett Rule.” No, not the one where he wants Americans who are trying to build a nice nest egg one paycheck at a time to pay far more in taxes than he does on his accumulated billions, but a broader interpretation of his quiet hypocrisy — that is, “Do what I say, not as I do.” In this case, the issue for Buffett and his Berkshire Hathaway came as the company was caught...