So let's start first of all with the irrefutable facts that we heard the Minister of Health affirm today. They are: day three testing is not compulsory and the Government does not know how many have not been tested at day three. Those are just statements of fact, so let's set that as the anchor and progress from there. I want to talk through the implications of not testing at day three and I want to create an imaginary unknown positive—not quite a carrier, but I'll call it an unknown positive—who turns up at Auckland Airport, or any border actually, is positive but doesn't know it; more specifically, they then do not have the day three test. What are the implications for this unknown positive of not having a day three test?