OT perhaps, but if you're into cryptography for security

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This may be a bit off-topic but as I don't expect there is a usenet group
for MI5 and CIA etc, webmasters might be interested in the topic.

There was a 30-minute programme this morning on BBC Radio 4 about "The
Lincolnshire Poacher" and cryptographic shortwave number "radio" stations,
their history and their role in security, espionage and sheer
What caught my attention was the claim that the Nazis could have told what
the weather was like in London by listening to the chimes from Big Ben(!)

and seek "Tracking the Lincolnshire Poacher"

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