The Deepest Dangers Facing the United States – Newsweek.
America’s social harmony has depended at least to some degree on economic growth. It is easier to get along when everyone, more or less, is getting ahead. But when the pie is shrinking, social groups are more likely to turn on each other. America has always been a remarkably classless society—obsessed by status and money, perhaps, but fluid enough so there was never an identifiable social class that was able to keep the rest out.