A good, clear explanation of Ignatieff's ideas come fom Julie Sanchez. In response to The 2004 CIA Inspector General Report on Torture, especially the section in which interrogators tortured a prisoner by threatening to kill the prisoner's children, Sanchez writes:
I guess what especially turns my stomach here is that the idea wasn’t just to inflict mental anguish on a presumably odious man in order to extract information. It was to inflict that pain by exploiting, as a weakness, whatever flicker of nobility or love remained in an otherwise wretched soul. It was a method of torture that would have been effective only because and to the extent there was something human left in him. Maybe I’m being overly sentimental, but every cell in my body is telling me this is sick and wrong.
There should not be much else to say on this topic though I doubt as if there will be a full review of what occurred. Ever.