The prime minister big new plan is a flawed policy in search of the science to back it up.
New Zealand has confirmed a new community outbreak of COVID-19 and the country returns to pandemic restrictions, with Auckland under alert level 3 conditions.
Ideally everyone could get tested frequently for the coronavirus. No state is close to achieving this, but some are doing better than others. What are the challenges in meeting demand for testing?
To control the COVID-19 pandemic through random testing would require about 6.5 million test a day. Using group testing and machine learning could get that number down to fewer than 40,000 day.
Here's one way to test more people for coronavirus with fewer resources.
The hard truth is that this ship has probably sailed.