OTTAWA, Ontario — “6-7-9-2-6. 5-6-9-9-0.” Tune across the shortwave bands (above AM/MW), and chances are you will come across a “numbers station.” There’s no programming to speak of; just a mechanical ...
What If on MSN
The secret spy messages hidden among our radio stations
Most people think of radio as a source of music, news, sports, or talk shows. But hidden among ordinary broadcasts is a mystery that has fascinated listeners, amateur radio operators, and intelligence ...
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