The hon. Gentleman makes a really important point. First of all, the advice is not to travel. It is to stay at home for the very reason that he has given: we are in a pandemic and we need to protect public health. He has highlighted some of the things that are taking place right now. Secondly, it is important for me to emphasise that this is a joint effort. Collaboration takes place in relation to the common travel area, the sharing of information and the sharing of data around passengers and flows. That has always been the case, and that will continue. None the less, I still emphasise that there is no need for individuals to travel. When it comes to the CTA and to the areas to which the hon. Gentleman is referring, we are also thinking predominantly about the movement of goods and hauliers, and, of course, there are checks in place for those particular examples.