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Likeitirish1 1 point ago +1 / -0

How do you power a listening device for seven years on 1945 tech?

NoApologyTour 1 point ago +1 / -0

It was passive. It essentially had a tuning fork in it that would pick up the vibrations for the conversations. They then used sophisticated technology outside of the embassy to wirelessly pick up on the tuningfork.