Sarah Halzack, Columnist

Is Walmart the Tipping Point on Masks? Let’s Hope So

The retail giant just helped the nation take an important step toward getting mask-wearing to be a routine behavior in all sorts of public domains. 

If you’re heading to Walmart, don’t forget your mask.

Photographer: Patrick T. Fallon/Bloomberg
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Politics have been getting in the way of Americans broadly adopting a crucial preventative health measure: Wearing a mask in public to curb the spread of Covid-19. Now, though, the experts that have been urging that practice have an enormously powerful ally in Walmart Inc.

The big-box retailing giant said Wednesday it would require customers at its eponymous stores and Sam’s Club chain to wear face coverings. While some 65% of its locations were already doing this to comply with local regulations, it will make it mandatory at all stores nationwide beginning July 20.