I think that there are important uses that could be made of data that, in other circumstances than that of a pandemic, we would expect to be private. Publicity on the ends to which this data is being placed, the limits on the use of the data, like temporal limits—when we are going to stop doing it, what the indicator is with respect to the pandemic that is going to make us say we're no longer in an emergency situation that justifies this extraordinary use of data—would go a long way in reducing some of that uncertainty.
On February 10th, 2022. See this statement in context.