Rt Hon JACINDA ARDERN: That's the first thing. The second thing: I'm told that one of the—I'm glad there is an expert sitting there on saliva testing. Maybe I should bring him into the briefings. The other thing that I've been advised, of course, is that it is fair to say that, actually, if you're doing it daily, then that in a way could compensate for any limitation in the level of accuracy. So I absolutely accept that. But if you are daily undertaking saliva testing across 12,000 people, in order to not reduce down the lab capacity that that would take up, you'd want to do pooled samples. You need to do, as I'm advised—