You don’t have to be a howling paranoid like Rep. Marjorie Taylor Greene (R-Ga.), who calls vax passports “Biden’s Mark of the Beast,” to appreciate the civil liberties issues posed by such a credential. …
Like random pat-downs on subway systems, metal detectors at Major League Baseball games, and most of what TSA does at the airport, the vaccine passport idea is an idea with obvious public appeal that gets a lot foggier when you start to weigh the potential benefits against the very clear costs.
A vaccine passport system would present enormous technical barriers, be expensive to administer and might not make us healthier.
What is the purpose of a vaccine passport anyway?