Millions of Americans live in extreme poverty. Here’s how they get by.

The decline of extreme poverty — defined by the World Bank as living on less than $1.25 a day, which is derived from the average poverty line in the world's poorest countries — in recent decades has been nothing short of remarkable. As Howard Schneider noted here  last week, not only has the percent of the world's population living in extreme poverty been cut in half since 1990, but it's set to be halved again in the next two decades: