The American mortgage—long the cornerstone of wealth building—is vanishing, Annie Lowrey reports. She examines what this may mean for the financial security of the American middle class—and the young people who face a future as perpetual renters:

The American mortgage—long the cornerstone of wealth building—is vanishing, Annie Lowrey reports. She examines what this may mean for the financial security of the American middle class—and the young people who face a future as perpetual renters: