Since the 1980s, Russian and US sources have repeatedly claimed that various groups of terrorists are dangerously close to acquiring a mysterious substance known as 'red mercury.' But what exactly is this stuff -- and why can't anyone agree about its chemical makeup, uses, or effects? Tune in and learn why there might be more to the story. They don’t want you to read our book.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.

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