"My mailbox and million of demographically similar others are choked with flyers from companies (Wal-mart, Victoria's Secret) bent on publicizing both their wares and their social bona fides by displaying black and white models at cordial ease with one another. A torrent of good will messages about race arrives daily - revelations of corporate largesse, commercials, news features, TV specials, all proclaiming that whites like me feel strongly positive impulses of friendship for blacks and that those same admirable impulses are effectively er ....