A gung-ho report discusses using biometrics for tickets to large events.
Look at the silly distraction arguments some of these companies. "We
don't keep track of who you are -- we just help some other company
keep track." What difference does it make? Once any one company
knows, some comoanies and government agencies will know all.
If I can't attend anonymously, I won't go.
However, I see positive potential in palm scanning if it is a substitute
for identification, Palm prints are safer than fingerprints, because
you don't leave your palm print on most things that you touch,
An inside-of-the-elbow print might be even better. You never touch
anything with the inside of your elbow, and you can keep it covered
all the time from cameras if you like. (Surely you do that in the
winter.) If you give your inside-of-the-elbow print when buying a
ticket anonymously, it would identify you as the owner of the ticket
without giving any idea of who you are.