Detroit auto show features greener, cleaner cars

The North American International Auto Show kicks off in Detroit today and big car companies will be featuring green vehicles and focusing on electrification. We talk with Jim Motavelli, blogger for The New York Times and author of “Forward Drive: The Race to Build “Clean” Cars for the Future,” about the supposed end of the V-6 era. Also joining us is Eddie Alterman, editor-in-chief of Car and Driver, to discuss changing times in the auto world.