Room 40 - Signals Decryption and Intelligence Analysis in Bowler Hats

Very interesting, found the video to be very informative.

PO1 William "Chip" Nagel
"Did Room 40 decrypt the Zimmermann Telegram?
For example, when Room 40 intercepted and decrypted the Zimmermann Telegram, the Admiralty and foreign office developed elaborate lies, one for the U.S. government and the other for the general public, about how they acquired the telegram."

Thanks for sharing