I have come to a conclusion,
Enhanced Interrogation is what you do to criminal combatants (attacking civilians, no uniform, human shields) that includes everything up to physical discomfort outside physical injury.
Torture is anything done either to extract secrets from lawful combatants, sheer malice / entertainment, public display for propaganda, or causing physical injury.
I think that Bush Justice Department had it right.
Yes, we are "torturing" i.e. roughing up human slime who cut the heads off children and stone women. Gee, we're sorry for making these pieces of s..t uncomfortable. Nichols is one of the most obnoxious leftists in the country. The rotten aroma he emits from Madison is something I can smell one hundred and some miles away. (snicker)