I'm assuming that the specific Irish problem you refer to is the IRA (and others) campaign to reunite Northern Ireland with the rest of Ireland. We do have other issues ...

9/11 had nothing to do with the IRA's cessation of hostilities: they realised a long time ago that violence wasn't going to achieve their objectives and decided to take the democratic route. I am in no way a fan of the IRA or Sinn Fein (their political wing), but I give them credit for realising that democracy and negotiation was the way to go.

UK border installations (watch towers, armoured checkpoints on roads) were being dismantled in the early 1990s. I remember crossing the border in 1987 or thereabouts and seeing bunkers and machine gun posts. 5 years later, no installations at all.

I had a brief look at the screening tool. I use Linux on my desktop, I use it for mission-critical messaging applications in our production environment (and have been doing so for several years), I use it for the company's e-mail services. My IT team doesn't need any Linux/Unix training - we can keep things ticking over pretty nicely. I'm not interested in adding e-commerce functionality to our websites, because we already have it. I don't have any legacy Unix applications, so I'm not interested in migrating them. The screening tool thinks I'm a Linux experimenter?? I used to be, back in 1996. Now I'm using to keep a business in operation. I know the screening tool is probably aimed at a specific market segment, but it looks to be a very blunt instrument indeed. Surely Microsoft has better market analysis than this?