It seems like after all this time, and with all of the research on the subject... not just being humane (and human), but being practical, we'd get it through our minds that torture (not enhanced interrogation, but torture) results in inconsistent and unreliable intelligence. So... even if you don't want to be human, you just want to make it appear so, we'd just do away with it. 
-wraith808
This.
By the same token, "enhanced interrogation" was never really about getting tactical information. Any it did obtain was purely a side effect.
The real goal for these practices (i.e. torture, kidnapping, etc. - I'll leave the reader to pick their own mealy-mouthed euphemisms like our government has) is found within the much bandied phrase:
Shock & Awe.
Have you ever seen a pack of adolescent boys hunkered down next to an anthill with one of them holding a magnifying glass? That's what you have here.
Guantanamo is not about security. Or obtaining information. It is about malice, and punishment, and reprisal, and cruelty - and clearly conveying the message that the United States is one crazy mean bastard that everybody else in the world had better think twice - and then think twice about
again - before they go messing with it.
Because if you do, this current government of ours promises that it will dedicate every last drop of it's vast resources to first hunting you down - and afterwards making you wish by all you hold holy, that you had
never been born.
There are easily a dozen things far worse than dying. And the US wants everyone to know with absolute certainty that it can do
all of them.*
Now time was when this sort of behavior would be considered a form of state sponsored terror. But "terrorism" is what
other nations, and political groups, and police and military forces do -
not us.
What we do is "shock and awe." Because
we say that's what it is we do.
Anybody got a problem with that?
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*Note: to get an idea of where the mindset behind this is, look no further than the words of Cofer Black, the individual heading the CIA’s post-9/11 counterterrorism programs:
"When I speak, I think the American people need to look into my face, and I want to look the American people in the eye. My name is Cofer Black. This is a very highly classified area. All you need to know is that there was a before 9/11 and there was an after 9/11. After 9/11, the gloves come off."