Sorry. I should clarify.
It doesn't produce actionable intel when employed by people on a power trip... people who are looking to deliver intel at any cost for career, not accuracy... people who are stupid... people who just want to get free reign to hurt others and dont care about methodology and utility... people who are incompetent... people who are jealous of operators and their glory and want to stick it to the bad guys too... people who want accolades for producing intel that gets the next 9/11 guys...
So , it doesn't produce actionable intel for: basically everyone.
Humanity sucks. In general, it's full of selfish, weak, idiotic aholes. Folks who ENJOY conducting torture, rather than actually using it to extract good intel.
It's probably possible, but I don't forsee torture being effective under any incarnation of the US government i can envision. We simply suck too much.
Yet the ... "experts" re emphasize how aggressively questioning Khalid S Mohammed got them the name of Osama Bin Laden's driver (whose name was one of thousands on CIA lists beforehand, but they had no context to understand what he did...) and thus, finally, allowed Seal Team 6 to whack OBL himself.
Plus other accounts of terrorist attacks being thwarted. Supposedly an attack on the tallest building on the West Coast, again using airplanes, was one such attack.
Whether it's called "enhanced interrogation," "aggressive questioning," or "torture," or whatever, and whatever one thinks of it, it apparently does work to some extent. I've heard it claimed that we don't do it to get "information," per se, but to get "cooperation." Whatever. Claiming it has never worked stands in opposition to the facts of the case, so it seems.
Now, I guess everyone is going to stomp me cause I "approve" of "torture."
Really. Well, here's something else; I've been told there are drugs that can be used that make people talk, irregardless of how well trained they are. The drugs are harmless and are reputed to work very very well.
Why aren't we using these drugs, assuming what I've heard is true? No torture is involved. One does not have to debate with Judge Napolitano whether water boarding is torture.