I thank the hon. Lady for her important question. Border Force staff are on the frontline day in, day out trying to protect the public from the spread of the virus. They are doing exceptional work, and yesterday I thanked them for the work they are doing. In terms of measures that are in place to protect them, I am absolutely focused on protecting our Border Force staff. It is absolutely right that that takes place. The head of Border Force and my colleagues across the Border Force team have been working assiduously with all Border Force colleagues, particularly at Heathrow airport, because it is a busy airport as we saw that on Saturday night, when queues formed because we are enforcing 100% compliance checks. With that, of course, I come back to my point about working with Heathrow Airport Ltd on the measures it is putting in place for social distancing, keeping passengers distanced from Border Force staff and, of course, ensuring that my staff are protected. That is my No. 1 priority.