Thank you very much, and I'm sure that you'll agree the sooner the better that this programme is rolled out, especially remembering that there is some slackening going to be over the Christmas period, and that this testing will be vital in January, as we move forward. 

As well as the large-scale tests, and the wearing of masks that we discussed earlier, what further measures are you considering to keep schools open, but in a safe way? For example, better ventilation of buildings. Is there detailed guidance for that? And, can you talk about other special measures to safeguard vulnerable school staff members—the clinically vulnerable employees? Those two areas—the unions are asking for clarity on. 

And, then, there have been demands for smaller classes and a rota system in place, if cases were to increase, of course. What is your opinion on that? And, if that is going to be introduced, then, clearly, there will be a need for additional support for remote learning with more pupils at home.