It's one of the most ancient practices in human civilization, and one that continues in the modern day. In recent decades experts, military officials and activists alike have argued over the definitions of torture -- and, most importantly, whether it actually works. So how much truth is there to the claims that, while unethical, torture delivers results? What's the Stuff the Authorities Don't Want You To Know about what goes on in those unobserved black sites hidden across the planet? Tune in to learn more.