I don't think it was photo-shopped, the 12 palaces at Camp Victory were visited and photographed by many. I have been in most of the Palaces that were accessible after the bombing to do structural analysis. as well as all the palaces in the Green Zone.
so I believe the photo to be real.
max
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"Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
RKCC #502