Listener Mail: A Photo of a UFO, a Zodiac Cipher and a Nazi Conspiracy to Tune Music

What's the most likely explanation for the recently-revealed photos of pilots encountering UFOs? What can investigators learn from the recent decryption of the Zodiac cipher? Keith from Chicago asks whether Nazis conspired to change our understanding of music. All this and more in this week's listener mail. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/ See omnystudio.com/listener for privacy information.