A wild journey to the outer limits of radio cryptography and espionage as Simon Fanshawe enters the clandestine world of shortwave Number stations.

Are they the mad aural daubings of pirate DJs, an extraordinary and elaborate hoax or are they, as many believe, coded messages broadcast by intelligence services and governments to their agents in the field?


Broadcast Details

  • First broadcast 20050423 (Radio 4)
  • First repeated 20061124 (Radio 4)

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