What would you have done if you were interrogating a perpetrator of 9/11 on 9/12 had one survived? I assume you would have called a cadre of ACLU lawyers to ensure the mass murdering vermin’s rights weren’t violated. At least your delicate sensibilities weren’t offended at Gitmo. Had Mossad gotten their hands on one of the scum they had on film murdering fifty innocent Israeli concert attendees, I’m sure they would have used kid gloves during interrogation.
I think classic torture can be useful in limited situations but a 9/11 terrorist would have been given over to the real pros who would have used more sophisticated interrogation methods than brutal physical torture.