Richard Brookhiser examines one of the most talked-about and most misunderstood groups in American life. Not long before his election, candidate George Bush was surprised to discover that much of the electorate's interest in him was due to a national inclination to rediscover traditional WASP values and styles such as personal modesty, public service and quiet steadfastness. In the 20th century, it was WASP adherence to tradition, restrained emotions,...