Pushing healthcare in USA's poorest big city

Today's door-to-door insurance salesmen may seem worlds apart from the residents of these often-tattered row houses, but they share one big thing in common. They haven't been able to afford insurance either. They face the daunting task of helping to convince the nearly 200,000 uninsured residents of Philadelphia County that they can — and should — buy it now. The new exchange's success, the cornerstone of the Affordable Care Act, will hinge on whether it can meet the federal goal of 7 million enrollees, but also on whether it can sign up enough healthy younger people like these canvassers to make up for all the ailing older ones.