Canada and the U.S. last week took two important steps to enclose their common backyard. On the Arctic Circle, the DEW line (for Distant Early Warning), a 3,000-mile electronic tripwire, was switched ...
The DEW line was one of three radar early warning systems of the time. If you grew up in the middle of the Cold War, you probably remember hearing about the Distant Early Warning line between duck-and ...
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