My suspicion is that at first only word of abuse leaked out. The ones responsible took or had someone take posed pictures of the reservists in these various abusive positions to deflect any implication of themselves. Either that, or they took the posed pix to show to other inmates, possibly to hang them in their cells to make them talk.
Whatever the case, these pix looked staged and posed. These are not candid shots in my mind. Maybe some others will come out and be different. The ones I've seen so far look like a scene was set up, smile, click, etc. What they intended to use them for later is another question. It's all just so bizarre.
I'm not saying it was right, but this doesn't look like systematic abuse as much as it does systematic picture taking. However, I guess these pictures are mild compared to the body of an American's remains charred and hanging in the town square, or the ones of the people jumping from the WTC.
There is more to come, much more. You should have heard this Arab American journalist on C-Span this morning. Other photos, etc. are already are being shown in Arab newspapers. He also stated that it is systematic.