But who is releasing them?

Come to think of it...who exactly took the pics? Was it "embedded" media or fellow soldiers?

If it was fellow soldiers, you gotta wonder why they'd be dumb enough to take the pictures. Or at least wonder why the ones doing it would be dumb enough to let someone take them (then again, they were dumb enough to do the shit).
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"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist