Torture is stupid because it doesn't get anything done except waste time...
Well I suppose we'd need you to define torture... because the word is so commonly abused that it truly means anything the speaker wants it to mean, thus in effect it means nothing.
I've debated leftists who sat there and DEMANDED that sleep deprivation is torture... Not feeding the prisoner a 'culturally sensitive diet' is torture... and so on...
Now you may disagree, but until you define the word, as you're using it, we'll have no way to know WHAT you mean by it.
There are many very effective ways of debriefing prisoners through the use of stress... where reward and punishment provide an unambiguous pathway for the individual to follow which will result in a reduction of the stress...
Now in ALL of this, there are circumstances which
preclude the use of many highly effective, time tested 'less-stressful procedures which produce wonderful results, because they TAKE TIME, often a LOT of time; days, weeks...
There are times, albeit, the stark minority of times, that an individual is captured and their individual status determines it reasonable to believe that they are in possession of certain TIME CRITICAL FACTS, which are desperately needed to save innocent life... or other just as critical moral imperatives. In these circumstances, there are few alternatives but to impart upon these rare individuals, extreme stress... stress which sets before them the very real and very unpleasant dilemma that their own personal fate rests within their own decision to come clean with the information being sought or seal their certain and excruciating demise.
In such cases, we are talking about individuals, who are not the common foot soldier, but central planners; high officials who are indisputably guilty of organizing, equipping and executing plans which were designed for no other purpose than the murder innocent people. There is no doubt of their guilt, there is no moral dilemma of 'is this the right guy, positive identification of an individual KNOWN to be plotting such, is sitting right in front of you and he has the keys to the next operation which you know is presently being executed and the result of that operation is good men will be killed for no other reason than this low-rent POS will not give you the information which is locked in his mind, that will enable you to stop that fruitless mayhem.
He has forfeited his rights to life, through his own disregard for the lives, thus the rights of innocent people... such people are not protected from the awesome power of government by the social contract of civil rights or the inalienable rights endowed by their creator... as they have overtly, knowingly, willfully violated the civil and inalienable rights of others... and what's more... they've done so through the unretractable guise of WAR. A status which is wholly distinct from criminality... or simple wrongheaded violation of criminal code. They have sought to destroy the culture of a given society, declared themselves hostile to that culture, it's people and their government and proven their determination to strike that culture, without compromise of human decency, mercy, or, as stated above, without consideration for the rights of those who can present NO CONTEST to their subversive and unjustifiable destructive means...
So it's beyond absurd to conclude that 'torture' is never an effective means of communication... that it never serves a moral imperative and that it is not PERFECTLY justified in it's application; when
"TORTURE" is defined as a method of coercive interrogation which imparts serious physical and mental discomfort, which will likely result in sustained physical injury for the overt and stated purpose of obtaining time critical information from an individual which has been captured and is known to be a high-level enemy operator; one who is reasonably believed to be in possession of critical, time sensitive information regarding the plans of the enemy to impart morally reprehensible, wholly unjusitifiable mayhem upon the innocent; information which once provided can and will be used to prevent the death or serious injury of the innocent."
Just blurting out 'torture' isn't enough... just declaring it, un-useful, is absurd... as when implemented properly, there are many extremely effective methods of coercive interrogation and the attempt to preclude this highly effective tool from use against such individuals as noted above, in circumstances such as that noted above is complicity in the murders of the lives lost, DUE TO THE PRECLUDING OF THE PROCEDURES WHICH COULD HAVE READILY PREVENTED THOSE UNJUSTIFABLE DEATHS.
Now what's more, is your use of the phrase: Blind faith.
This phrase is often used to discredit the necessary function of letting people that we've assigned to perform certian tasks... PERFORM THOSE TASKS to the best of their ability, given the circumstances to which WE HAVE SUBJECTED THEM...
There is an unmitigated trust which comes with such positions... and it is imperative that this trust be observed; recognized, so as not to destroy the very means of these individuals and their critical function to be EFFECTIVE in the purposes to which they've been assigned.
When we undermine that trust through the second guessing of their reasonable means of permorning their tasks and remnder those means impotent. In effect waging war through endless committes which are comprised of oppossing points of view... and that is the fast track to lossing a war.
You can disagree with the methods used in executing a war; but given that the ONLY morally viable, culturally sustainable goal of war is to WIN THAT WAR, as soon as is humanly possible, then the debating of every possible move used in the execution of that war is incontrovertibly counter-productive to the goal... thus not a worthy alternative for a viable, sustainable culture.
Win the war... then debate the strategy and tactics used in doing so. Where the culture has establised valid moral codes for those who've you've assigned to execute that war to follow, with clear and unambiguous lines drawn; then post action investigations can draw conclusions from the actions employed by those individuals. But war is unbridled mayhem... and anything which can be said to draw that mayhem out, is itself a crime which can only serve to broaden the hardships, deepen the pain and expand the death and injury to the individuals and the summed collectives of BOTH SIDES.