essentially the rest of the world it seems lol except Europe and the US and Canada.
Known fact: the UK, France, Spain, and in two known cases even Germany does it. The Germans use sound waves that can explode a kidney if done incorrectly or correctly depending on who is using it. The French just beat the hell out of you, the UK uses chemicals, drugs that make you vomit, cause your blood pressure to rise to dangerous levels. All except for France leave no phisical marks, no proof of torture.
You insist that waterboarding is not torture because it does not hurt you - but that on the other hand everybody gave up everything he knew in under a minute (I assume that was from your training). Now why would a person do that if it was so harmless? Maybe because it was because your brain didn't believe that it was so harmless.. it thought it was drowning and that you were about to die. Making someone believe that you're about to die isn't some party trick, at least not where I come from. It's the same as pointing a gun at someone and pulling the trigger, only that you knew that there were no bullets in it and the other person didn't. Harmless, nobody got hurt
You are correct it is all in the mind, all interrogation is in the mind. Even the conversations with the terrorists are mental probes into the terrorist. Just talking to the terrorists will get most of what we want but it can take as much as 11 years to get them to talk. With the people that were waterboarded they had information that was time sensitive. Once Mohamed found out that we were not going to beat the information out of him he laughed at us because he saw that as weakness. Five minutes later we had actionable intelligence on current plots to attack the UK, the US, and two other countries.
It is all a mind game, just like the 30 hour week. A form of interrogaton that makes the person think a week has gone by in 30 hours. His bomb plot was a success so now he brags about the details and we grab the bad guys before they can do harm.
Before an interrogation method is used the person is evaluated for the best trick. it is used and we get the information. The 30 hour week is the thing we use that is closest to torture. It can cause a mental breakdown when the terrorists finds out that he was tricked.
Since you don't wish to trade or go to or deal with countries that are in your words barbaric, then don't buy or use any product that is petroleum based unless you know that the oil came from Canada or America, if not then you are directly supporting torture.