An interview with Jeff Lipton, a 3-D food printing pioneer.
Maricopa County considers converting HOV lanes to toll lanes
The Maricopa Association of Governments has unanimously approved further studying of converting some High Occupancy Vehicle lanes into toll lanes.
Steve Goldstein talks with MAG Senior Engineer Bob Hazlett about the options and their viability.
Also, Ariel Hart of The Arlanta Journal-Constitution describes the impact of toll lanes in Georgia.