It’s surprising how unsuccessful the Gestapo’s brutal efforts were. They failed to break senior leaders of the French, Danish, Polish and German resistance. I’ve spent more than a decade collecting all the cases of Gestapo torture “successes” in multiple languages; the number is small and the results pathetic, especially compared with the devastating effects [on] public cooperation and informers. |The Five Myths about Torture - Union Leader|
While it isn't scholarly, Darius Rejali has a short article in the Union Leader where he responds to five common views about torture that he thinks are mistaken.