Warren Buffett, that most eminent investor, has been fond of proclaiming smugly that “it’s only when the tide goes out that you see who’s been swimming naked.” Is it indeed true that nudity is revealed by an ebb tide?

A Russian visa cannot be extended after arrival in the country, except for a medical emergency. Travelers who overstay their visa’s validity, even by a day, can be prevented from leaving until their sponsor intervenes.