This seems to me to open a big can of worms, and goes to the heart of the identity problem space. There are any number of ways to spoof identity with paper- and

This seems to me to open a big can of worms, and goes to the heart of the identity problem space. There are any number of ways to spoof identity with paper- and card- identity-based systems, and if I'm an organization that has to know the physical person standing in front of me is some person in my database records, I don't know how I could realistically constrain spoofing to a 1:1,000,000 level or better. Short of only authorizing on entire pairs or groups of people vouching for each other at the same time, like missile launch officers or bigger groups, it seems a really tough problem to comprehensively solve if you are only given a plastic card and one person standing in front of you (literally or figuratively) to base your decision upon.