Who stole the pipe?

It seems to me this sort of says it all when it comes to the efficacy of torture:

One nasty morning Comrade Stalin discovered that his favorite pipe was missing. Naturally, he called in his henchman, Lavrenti Beria, and instructed him to find the pipe. A few hours later, Stalin found it in his desk and called off the search. "But, Comrade Stalin," stammered Beria, "five suspects have already confessed to stealing it."