The noble and gallant Lord raises an important point. I wish to limit my answer, for obvious reasons, but suffice it to say that we talk with our Irish colleagues about some of these threats. Wherever a threat may come from, we take measures to defend our homeland from it. That includes surveillance aircraft, developing underwater technology and working with private industry to see what we can do. We are taking a range of measures. The noble and gallant Lord can rest assured that we take all threats seriously, wherever they come from.