I don't understand why the US must invent new solutions, when there are already working solutions in other countries of the world. Yes, with a digitally signed QR code and an ID, where the controller checks the signature and the ID and that's it, no medical info goes anywhere. Even the US has ID checks when buying alcohol, why it's so difficult to use for covid? And yeah some people show fake IDs too, but how many are those. And yeah some people will show with "lying" QRs but only the health authorities can issue those so you know already where you must look for the forgers.
