Torture Doesn't Work

This line of argument, from Josh Marshall over to TPM, is really bizarre:

As a more general matter it's important to recognize that torture could easily have produced the key information. It just seems not to have in this case. You can be doctrinaire in opposing torture without being doctrinaire in assuming that it can't produce any good intelligence, which would be foolish.

We have known for the longest time that torture doesn't work.It's like the ticking time, how would you know if what the torturee said was true?  You torture the guy, run to where he says it is. If it's there okay, if it's not? More torture. New information also proven untrue. More torture. etc.  That's how it worked with the witches. Unless, of course, you think that witches actually existed.