BBC video: “The ‘spy radio’ that anyone can hear”

Many thanks to SWLing Post contributor, Mark Hirst, who writes:

Nothing that an SWLing Post reader doesn't already know-more for general consumption:

http://www.bbc.co.uk/news/av/world-42819704/numbers-stations-the-spy-radio-that-anyone-can-hear

For decades, people around the globe have been able to listen in to mysterious spy broadcasts from all over the world with just a radio.

Gordon Corera has been investigating the strange world of number stations.

Video produced by James Reevell

Thanks for the tip, Mark!