clipped from: digbysblog.blogspot.com   
It can be difficult keeping up with all the torture apologist appearances

they rotate through the same old long-debunked arguments

it's a disingenuous performance that makes much more sense if one realizes he's arguing from a conclusion, not larger principles - don't prosecute or investigate any of the culprits. Because of this, torture apologists frequently offer extremely convoluted and even contradictory arguments.

What follows is a chart of torture apologist arguments
clipped from: 4.bp.blogspot.com   
[Torture+Apologia+Chart6.jpg]
clipped from: digbysblog.blogspot.com   
I've tried to use a rough color scheme

Red roughly corresponds to authoritarian arguments, fear-mongering, bullying and bigotry. Somewhat contradictory to those are the claims of responsibility and utility in blue. Green is for legal matters, and purple is mostly for arguments about politics and fallout (often a mix of authoritarian and utilitarian pitches). Black is for particularly noxious, immoral arguments (all of which have actually been made, unfortunately).

I think I've covered most of the major arguments