What if we cannot change the past?

A (serious) question for friends in the desi elite (this is not a rhetorical question, i am genuinely curious to know what the best minds of the age are thinking):

Suppose (just for the sake of argument) that we have no power to go back in time and change the past. What would you advise at this point about Iraq? I am not looking for descriptions of what happened and why it happened and who was at fault ..we all have our theories about that and  I am well aware of most of them; I do live among the desi elite and read their posts and emails. 
I am looking here for your views about what should be done now, or in the days to come, by America, by the Iraqis, by Iranians, by whoever.

As I said, I am genuinely curious. I dont get any clear sense of direction from the elite left and wonder if I am missing something? or could it be that there really IS no party line yet? 

Of course, there is a subtext of sorts behind the question. I have had the thought that this lack of clear direction may say something about how far our party line and the reality of the world have diverged (they were always separate, but there were connections, points of contact). But before I develop that thought, I want to know if I have missed something….

Brown Pundits