How Pittsburgh is test driving tech to make your commute smarter

HARI SREENIVASAN: But first: Can robotics and artificial intelligence help improve that rush hour commute you're facing? Experts at Carnegie Mellon University think they can by monitoring traffic flow in real time. Jeffrey Brown has the story from Pittsburgh, part of our weekly series on the Leading Edge of science and technology. JEFFREY BROWN: You know the frustration. You're late for work or to pick up your child.