CIA Declassified: What Backwards Secrets are you hiding in your Reverse Speech?

In 1983, David Oates dropped his walkman into the toilet. If you're under 40 years old, a walkman was a portable cassette player. If you're under 30, a cassette was how we listened to music in the stone age. Anyway, after being dropped, David's tape player would only play tapes in reverse. At…