Thank you, First Minister, for that answer. If I wanted a more detailed response in relation to your letter to the Prime Minister, I could now go to the media, because I see they're actively tweeting out that letter, and we as Assembly Members haven't seen the scientific evidence that you attach to it, which is highly regrettable and disrespectful, I'd suggest to you. Also, when it comes to SAGE's advice when it comes to travel restrictions, it says that they would have a low impact and they have moderate confidence that they would be successful. They go on to say that exemptions and enforcement are likely to be very complicated. So, given that is SAGE's advice back in September, and I assume you as a Government have seen that, what confidence have you got that the testing analysis that you have passed over to the Prime Minister overrides the advice that SAGE has given on travel restrictions?