It was just over four years ago when Detroit became the biggest city in US history to file for bankruptcy.
Today, it is undergoing a renaissance, but many of its hardest-hit residents are not sharing in that newfound prosperity.
Thousands are homeless.
That is a problem in many cities across the United States, but Detroit and a few other cities are experimenting with a surprisingly simple solution.
Al Jazeera's John Hendren reports from Detroit.
