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As usual I like an Ed Yong article, because he's thorough and thoughtful and sometimes funny (not this time):
https://www.theatlantic.com/health/archive/2020/04/pandemic-confusing-uncertainty/610819/
"...to determine if such testing is actually a good idea, listen to ethicists, anthropologists, and historians of science. No one knows it all, and those who claim to should not be trusted."
"pandemics demand both depth and breadth of expertise.
To work out if widespread testing is crucial for controlling the pandemic, listen to public-health experts;
to work out if widespread testing is possible, listen to supply-chain experts.
To determine if antibody tests can tell people if they’re immune to the coronavirus, listen to immunologists; "