When Is It Just to Intervene?

We spent six trillion dollars on nation building exercises in the middle east, between afghanistan and arack a for what? For naught. How many of our domestic disputes are caused by the fact that we squandered six trillion dollars? That's more than bin's entire domestic agenda. To frieberg's point, we never understood the culture there. And to chamas point, it was a giant money funneling operation to defene contractors.