I will deal with the final point first. Contact tracing could require up to 20,000 tests depending on where we are in terms of coming out of lockdown and the rate of the transmission spread. Trying to compare where we are now with what might happen months in the future is a pretty foolish place to get yourself into and it's not at all an honest way of describing where we are. And I just think, at a time when people are worried, to try to put out ideas and figures that are openly and undeniably misleading is incredibly irresponsible.