Torture this, torture that. Rubbish.
Real torture is useless in obtaining intelligence information. You can beat a person to death and he will tell you anything you want to hear to make the pain stop. You simply have no confidence in the information you beat out of a prisoner.
The torture the featherheads of the left continues to talk about amounts to psychological dislocation without permanent physical harm. Dislocation of the prisoner from his fellows, by isolation to isolation from everything else by sensory deprivation, puts the prisoner into a tremendously vulnerable position, during which useful intelligence information (as he knows it) may be elicited. It is likely that the lack of successful attacks on American soil has been the direct or indirect use of this method, or from some of the other methods the leftards object to. So why do they object? My guess is that a few hundred or few thousand dead Americans are a small price to pay for their principles.