Justice and the human brain

We should take note of this: Justice may be hard-wired into the human brain - life - 11 December 2008 - New Scientist and it's probably no surprise at one level: "ancient and modern criminal justice systems may otherwise be built on a much more primitive, pre-existing machinery for recognizing unfairness to you", after all we have to process the stuff to do with justice and ethics somewhere in our brains. Of course there will be the same old interpretive tussle on both sides of the God-no-god debate and this adds nothing new to that. We simply need to note that the why and the how questions still need to be looked at separately and that we shouldn't make the mistake of treating this 'how?' as if it tells us something about 'why?'