Approximately 53% of Detroit's police force live in the suburbs. Now Detroit's Mayor Bing is trying to entice them back in by offering to contribute to their inner city housing costs. Safer communities and better schools drew them out... can cash incentives lure them back in?

‘ObamaRail’ has quickly become the new ‘ObamaCare.’ Much like last year’s divide on healthcare reform, Republicans and President Obama again find themselves at odds; this time on whether or not to build a nation-wide high-speed rail network. Former Pennsylvania governor Ed Rendell, a democrat and co-chair of Building America’s Future, makes his case for spending now on modernizing the nation’s infrastructure.

With nearly 150,000 bridges across the country structurally unsound and no plan yet in place, blogger Gridlock Sam looks at the challenges we face in trying to tackling our broken bridges.

A group of budding city planners in Detroit competes against students from more affluent suburbs to design the city of the future. A report from Detroit Public Television.

Detroit's mayor wants to rebuild the city by shrinking it to fit its population. Convincing residents to move will be challenging enough. Can he also convince commuters to move in?

Energy policy expert Lisa Margonelli is the author of a book about the oil supply chain, "Oil On the Brain: Petroleum’s Long Strange Trip to Your Tank." In this interview, Need to Know's Alison Stewart speaks to Margonelli about U.S. energy policy in the wake of the BP spill. "The oil problem is so huge and so multi-tentacled and so involved in our lives," said Margonelli. "People are hungering for sort of bigger, more technological fixes… But I think we’ve overlooked the social engineering. Which is that we can really change our behaviors quite quickly – and we often times do change our behaviors."

One of the poorest, most violent cities in our nation recently lost half its police force. PBS Need to Know visits Camden, N. J., to see the challenges on the ground and explore possible solutions for the city.