There is inevitably going to be an increase in infections and deaths in the coming weeks due to people breaking lockdown in reaction to DC's behavior and Boris condoning it.
But there's only one week until the schools open, which will also increase cases and deaths - and it's really important to know how much school reopening has increased transmission, in order to decide how/when the return to school can progress.
Do we need to hold off on re-opening for a few weeks to be able to distinguish between the two causes?
If the increase is so high that we have to shut down again, then at least that's clear. Doesn't really matter why it went up (not to choosing the next steps anyway).
But what about if it goes from 0.7 to 0.9 say? If we assume that letting the next batch of kids back would also increase it by the same amount, then we would hold off. But if that increase is due to DC, then it might be OK for them to go back.
How can we make scientific decisions when the data is going to be muddied?