Ardern: The most relevant was the bovine tuberculosis biosecurity incursion because we were making decisions in a really uncertain environment where there wasn’t a template. When the disease came into New Zealand, we brought together those who were most affected—our farming community—gathered an expert advisory group, and panned around other countries to see how they had responded. I particularly wanted to know: Who else had tried to eradicate this illness? The answer was no one. But we realized that if we sought to and failed, we’d end up no worse off than any other country. So that was the path of least regret. And that psychology also played out in the approach we took during the pandemic. If we chose a path no one else was traveling and we failed, we would simply end up in the place that many others were in.