CGP Gray did a really good video[1] about this recently. The short version is that it's the least terrible mechanism presently available for uniquely identifyin

CGP Gray did a really good video[1] about this recently. The short version is that it's the least terrible mechanism presently available for uniquely identifying and disambiguating American citizens. [1] https://www.youtube.com/watch?v=Erp8IAUouus https://www.youtube.com/watch?v=Erp8IAUouus