&gt; Right, but the point of the article is that they were doing it to the wrong person. That doesn&#x27;t mean it does not work. Causation does not imply correlation.<p>I think this case make it obvious that it&#x27;s impossible to tell if the person you&#x27;re torturing has the information you&#x27;re looking for and is withholding it, or simply doesn&#x27;t have the information. That&#x27;s a textbook definition of &quot;ineffective&quot;.