America needs a vaccine passport now

A provisional vaccine database would prevent confusion this summer — and maybe a few scams

It's time for a vaccine passport in the United States. But not for the reason you're thinking.

It's not because close to 20 percent of Americans have had their shots. And it's not because U.S. and international airline trade organizations, labor unions and the U.S. Chamber of Commerce are pushing the Biden administration to develop credentials that would…