Why do they use torture when they have the truth drug?

[lunatica]

This has always bothered me and I can only conclude that torturing people is more satisfying to those who do it and to those who order it. It's the same psychology as the murderer, the rapist, the abuser of those who he can victimize. What's the difference between a person who can abuse their children who must suffer both physical and psychological abuse and the torturer? I think it's only the degree of opportunity and torture being sanctioned to some degree.

But why not use Sodium Pentathol which is the truth drug? Or a drug developed by the Russians which is codenamed SP-17 (see the quote below)

http://en.wikipedia.org/wiki/Truth_drug


"A defector from the biological weapons department 12 of the KGB "illegals" (S) directorate (part of Russian SVR service) claimed that a truth drug codenamed SP-17 is highly effective and has been widely used. "The 'remedy which loosens the tongue' has no taste, no smell, no color, and no immediate side effects. And, most important, a person has no recollection of having the 'heart-to-heart talk'" (the subject feels afterwards as if they had suddenly fallen asleep)..."