Seymour Hersh

It's been over a year since I published a series of articles in the New Yorker outlining the abuses at Abu Ghraib. There have been at least 10 official military investigations since then - none of which has challenged the official Bush administration line that there was no high-level policy condoning or overlooking such abuse. The buck always stops with the handful of enlisted army reservists from the 372nd Military Police Company whose images fill the iconic Abu Ghraib photos with their inappropriate smiles and sadistic posing of the prisoners.

The unknown unknowns of the Abu Ghraib scandal
Seymour Hersh: The 10 inquiries into prisoner abuse have let Bush and Co off the hook
The Guardian