Matthew Yglesias, Columnist

Masks Work. Mask Mandates Don’t.

There’s a gap between our scientific knowledge and the policy measures that would take advantage of it — and it’s the job of politicians to close that gap.

Los Angeles, July 20, 2020. 

Photographer: CHRIS DELMAS/AFP
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So masks don’t work after all? That’s the conclusion many conservatives took from a comprehensive analysis of the use of masks to prevent the spread of respiratory infections such as Covid-19 — and it’s led, naturally enough, to a lot of football-spiking and I-told-you-so’s.

Delve into the details of the study, however, and it’s clear that the conclusion is better phrased this way: Masks work, but mask mandates don’t. And while conservatives may be unwilling to acknowledge the first point, liberals are reluctant to admit the second.