I know about the 70s and 80s terrorism. That was addressed and he ceased to the US's satisfaction. They killed his daughter in that raid if you recall, this can change people's outlook alot.
If the USA is using that 70s and 80s war as the pretext for an illegal war through intervention in a civil war then that is about as credible as Iraqi WMDs. Something about justice, is you address it when it happens. The USA made the change and got the pound of flesh it wanted when Reagan bombed Libya. If a now past and amended event is the pretext for this invasion, then we should have invaded 15 years ago. To me such a pretext is absurd, when you say you are 'over it' you are over it. Words have meaning. I guess Israel should just invade Germany tommorrow to, because the new rule is, when you are 'over it' that means you an actually 'start tripping' when ever the opportunity presents itself.