But actually, it is the human factor that is by far the most important part of the success or failure of our system of isolation. I do want to acknowledge that of the—I think we'd be over 170,000 now. I don't have the exact figure to the day, but we were about 168,000 last week of people who have come through our managed isolation facilities and back into New Zealand. We are talking about less than a dozen or so incidents, potentially, of transmission. Now, in the global context, no other country—very few other countries, if any—would be able to claim that level of success for their managed isolation and their border restrictions, and it is the people that make that possible. But no system there is without risk. No matter how good you make the facilities, again, there is no system there without risk, because at some point you still have to get food to people. You still have to provide for their ability to get some fresh air. With any of those activities, there's a degree of risk. You have to attend to their health needs. You have to be able to test them. All of those things involve a bit of human interaction, and with that comes a degree of risk. So I just want to really stress it isn't just about the physical facilities.