Because Bush and Cheney liked it

That's why they did it:

....the Nelly account shows that health professionals are right in the thick of the torture and abuse of the prisoners—suggesting a systematic collapse of professional ethics driven by the Pentagon itself. He describes body searches undertaken for no legitimate security purpose, simply to sexually invade and humiliate the prisoners. This was a standardized Bush Administration tactic–the importance of which became apparent to me when I participated in some Capitol Hill negotiations with White House representatives relating to legislation creating criminal law accountability for contractors. The Bush White House vehemently objected to provisions of the law dealing with rape by instrumentality. When House negotiators pressed to know why, they were met first with silence and then an embarrassed acknowledgement that a key part of the Bush program included invasion of the bodies of prisoners in a way that might be deemed rape by instrumentality under existing federal and state criminal statutes. While these techniques have long been known, the role of health care professionals in implementing them is shocking.

We want the names of these so-called health professionals. We want the names of these 'doctors' who helped with these horrors before they squirm back into the woodwork. We want them to explain to us why.

Because there won't be any reason. There can be no explanation. None.

And then we will hear them use Nuremberg Defense.