This weekend, NPR’s Guy Raz interviewed Mark Stout, the official historian at the International Spy Museum. Their topic? Numbers stations. Click hear to go to NPR’s webpage, listen and/or read the full transcript. You can also download an MP3 audio file of the report by clicking here.

For even more numbers station audio, check out the piece that shortwave enthusiast, David Goren, produced by clicking here.  Also, read all of our various articles that mention numbers stations.