Using so-called "truth serum" is hardly effective. My, how some like to believe that their revenge fantasies are also useful.

To get anything out of such an interrogation, one needs solid and effective intelligence to relate the disjointed rambling against. Then again, if one has solid and effective intelligence, you get far more from a standard interrogation through layered questioning and narrative traps.

And there's several good reasons why most people, given the option, prefer to live in "advanced democracies" - and a lot of them have to do with respect for human rights.