It also virtualls eliminates the "underground economy" like the illegals who do not pay FICA/SS taxes on wages since they do not have the tracing paperwork to do it. Anytime they buy anything, they would be contributing. So would rich foreign folks who come and buy expensive american products like airplanes as an example. I am for it, even if it DOES add a few thousand burocrats to the unemployment roles. I think Wal-Mart has openings for greeters.