Rt Hon JACINDA ARDERN: As the member will be aware, there have been a number of occasions where we have had to operate land boundaries; we have done so and then, of course, following elimination, they've been able to be lifted. Delta, for every country around the world, has been an absolute game-changer. It did not even exist 18 months ago. In fact, I would point out to the member that many of the countries' experiences that they are having now—with the likes of the Netherlands and Austria, despite high vaccine rates—having to re-impose restrictions, is because Delta is behaving very differently than, for instance, Alpha. If we were still in that phase of the pandemic, we wouldn't be having many of these conversations.