And the mandated passports will work till they get torn,tattered, miss placed or forged and people get tired of standing in lineups waiting for the person ahead of them try to remember where it was.
Then the powers that be will come out with a brilliant idea- why not just get this little micro-chip in your wrist and you won't even have to slow down walking into any building or airport, and honestly we'll only have your vax info on it.
