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Power grid barely makes the grade

  April 30: The Army Corps of Engineers have given the nation's electrical power grid a "D" grade. NBC's Chris Jansing reports.

Why America's trains aren't taking off

  April 29:  Tom Costello reports on our train system's need for an overhaul.

U.S. infrastructure facing midlife crisis

  April 28: Traffic may become the least of our worries. NBC's Kevin Tibbles reports.

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    How a nuclear plant works

    The basic steps involved in turning a nuclear reaction into electricity. Though nuclear plants have been modernized, the basic design hasn't changed much in 50 years.

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