A far bigger problem for us now is the threat from fundamental Islam.
Absolutely (although the recent crisis in the NI assembly shows that we need to keep our eye on that ball too).
What NI can show, though, is how solutions to terror involve people stepping aside from the mouth frothing hatred and fear mongering of sectarianism, and engaging with "the other side", to try to stamp out the bloodshed. We actually have a march on the NI situation, certainly in the West, in that (in my view and experience), we have a majority Muslim population which has not yet been alienated and rendered hostile by persecution of them (although, Heathen, I recognise that alienation and hostility was not universal amongst NI's Catholic population before the peace process). To hear the simplistic and fear-ridden denunciation of a huge population's faith by certain people on this site and elsewhere, I worry that we miss an opportunity to gradually remove any level of support for fundamentalist violence.
Absolutely, we fight it, and look to stamp it out - but we include in our arsenal an engagement with the majority Muslim population, who do not support such violence. That's what the majority of the Catholic and Protestant populations in NI did with each other, when they wanted the killing to stop.
Could there be any greater conceit, than for someone to believe that the universe has to be simple enough for them to be able to understand it ?