This article originally appeared in print with the headline, "Size matters."   Imagine 680,000 pounds of concrete foundation and towers designed to survive a nuclear blast two miles away. During the Cold War, AT&T built a plethora of massive microwave towers to create an unbroken coast-to-coast, border-to-border, line-of-sight network of dedicated lines and circuit-switched traffic. These towers were designed to keep our military connected in case of nuclear ...

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