Spies and hackers might not be the only threats to power grid

The real threats to the U.S. power grid aren't spies and hackers, but a combination of decades of post-deregulation underinvestment and legions of "nimbys" who block attempts to upgrade the aging system. Experts in the electrical grid were skeptical of last week's reports that the power grid had been hacked, citing the complete absence of concrete details about what happened.

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