A new report says traffic in the U.S. is worse than it's been in years. But some say there are reasons to be optimistic. For this month's Environmental Outlook: How revitalized urban centers and new modes of transportation are changing how we get around our cities.
Howard Rheingold, an expert in the social implications of technology, talks about the ways cell phones and other mobile communications devices are changing commerce, family life, politics, dating, and much more.
- Howard Rheingold Author and expert in the social implications of technology
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