September 19, 2010 3:05 PM

That freight train you're waiting for may be good economic sign

Turn on the television news of late or scan the front pages of a newspaper and you may come away with the impression that the U.S. economy is either stuck in the mud or sliding downhill toward a cliff. But one early indicator of economic activity, freight carried by U.S. railroads, offers signs that business is picking up overall and particularly in some key industries.

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