Yep. Social Security numbers are not guaranteed to be unique, and for a very long time, were pretty easy to figure out if you knew roughly when a person was bor

Yep. Social Security numbers are not guaranteed to be unique, and for a very long time, were pretty easy to figure out if you knew roughly when a person was born and where. "I know! We'll use this number that its issuing agency says is most definitely not to be used for identification purposes for identification purposes!" is real PHB thinking.