The I.R.A were almost broken by the intelligence agencies in Northern Ireland. Then someone thought internment would be a good idea. Over night the IRA's number increased by the hundreds and motivated thousands of young impressionable young people to go out and murder their neighbours.

It ain't a Muslim thing, it ain't a Christian thing. You back a people into a corner and push them one step too far and they flip. It happens outside bars and clubs nightly at a micro level. Its human nature. Desperate people do desperate things.