Time travel: the Professor's 1941 shortwave radios
Flashback lesson on how the gang will talk: WWII-era BBC shortwave sets wrapped in 2,300 layers of encryption that grow with every call.
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#encryption
1 moment.
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1 moment.
Flashback lesson on how the gang will talk: WWII-era BBC shortwave sets wrapped in 2,300 layers of encryption that grow with every call.