Judi meets historian Helen Fry who has written a book called 'The M Room: Secret Listeners who bugged the Nazis', and also one of those secret listeners, Fritz Lustig. Show more
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Judi meets historian Helen Fry who has written a book called 'The M Room: Secret Listeners who bugged the Nazis', and also one of those secret listeners, Fritz Lustig. Show more
BBC Radio Devon
