LONDON The other night, as I left the theater, I saw a woman wearing a fur hat. Some people, of course, don't like the sight of fur; I'm not one of them. But I noticed the badge on the front of her hat: a red and gold hammer and sickle. No doubt about it, she looked striking: the glittering, graphically coherent symbol set off by the soft shine of the fur. Yet it made me wonder what she had been thinking when she acquired her post-Communist trophy. Why, I wondered, is Communist chic acceptable, when -- as Prince Harry's swastika-wearing...