What do you call a highway program that just keeps going long after its original goals were achieved? A zombie highway. Blueprint America -- with The NewsHour with Jim Lehrer -- goes to Birmingham, Alabama, to look into the Northern Beltline, a road that will cost more than $3 billion, most of which will be paid for by taxpayers nationwide.

An exchange with Phillip Wiedmeyer, a leading advocate for Birmingham's Northern Beltline, about the argument for more highway building in Alabama -- it's a how to on Zombie Higways.

Blueprint America correspondent Rick Karr in a web report from Alabama on the environmental impact of building highways, and the growth they can create.