No, it really does not. Or, to put it another way, it works to well. When tortured, the target will generally say anything at all to make the torture stop and will make shit up not only to conceal real plans but more likely just so that the torturer will think the information is genuine and stop torturing the prisoner.
That depends on if the interrogators are doing their job correctly. You dont just accept the first line of twaddle that comes out of them, but you rinse their minds with some pain so that when they remember the session the pain and discomfort is all that they remember of it.
Then you repeat the questions in a different order with different phrases, and see what you get and compare it. Typically this would happen over the course of days, and torture would not necessarily be used if the target is giving up good information without torture.
It does not depend on the interrogator. The fact is that there is not a single study I can find that upholds the effectiveness of torture methods. Throughout history it is insanely clear on how ineffective it is though. Such was used to get all manner of confessions from people on things that were more than untrue but were also literally impossible.
There are a myriad of studies that find the exact opposite though - that torture itself is ineffective.
Virtually everyone breaks. That does not mean it works. The info gained is notoriously inaccurate. Even more important is that we have methods that are BETTER at getting accurate and relevant data than torture. Why stoop down to torture if it is LESS LIKELY to get valuable information.
Because it is not less accurate if you do it right.
and if there are better ways of doing it, great, lets do them. Torture is an almost last resort. The last resort is torturing and killing their loved ones in front of them.
Your contention is that it is not less accurate but that is not supported by anything at all. It is pure conjecture and counter to anything that has been found actually investigating the subject.
Lastly, if you are seriously considering torturing the INNOCENT then you really are no worse than the terrorists themselves. 2 very powerful quotes come to mind:
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety."
Benjamin Franklin
That is EXACTLY what you are advocating for - surrendering ALL liberties of those that might be a family member of a terrorist.
"As soon as men decide that all means are permitted to fight an evil, then their good becomes indistinguishable from the evil that they set out to destroy."
Christopher Dawson
You advocate that we are better than the Muslims that you intend to fight but then want to become just like them. Evil is evil, period. You cannot condone pure evil acts like torturing the innocent with loft statements of benevolence. They are outright lies.