Book: Britian's Brilliant Bugs Bomb Nazis

Historian Helen Fry, who has written a book called The M Room: Secret Listeners who bugged the Nazis., says the information gleaned by the eavesdropping of the German generals was vitally important to the war effort - so much so that it was given an unlimited budget by the government.

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She believes what was learned by the M room operations was as significant as the code-breaking work being done at Bletchley Park.

"British intelligence got the most amazing stuff in bugging the conversations. Churchill said of Trent Park that it afforded a unique insight into the psyche of the enemy. It enabled us to understand the mind-set of the enemy as well as learn military secrets. "If it wasn't for this bugging operation, we may well have not won the war." (more)