ISIS Is Trying To Create A Doomsday Bomb, But Is The Key Ingredient A Myth?

New York Times reporter C.J. Chivers discusses efforts by ISIS to weaponize a mysterious substance known as red mercury. "It's never been seen," he says. "It essentially is an urban legend."
Interview:
http://www.npr.org/2015/11/24/457175815/isis-is-trying-to-create-a-doomsday-bomb-but-is-the-key-ingredient-a-myth