Or a definitely wrong value was removed but there's nothing to correct it with. For example, if someone was registered with a birth date of 02/18/1458, or has

Or a definitely wrong value was removed but there's nothing to correct it with. For example, if someone was registered with a birth date of 02/18/1458, or has a birth certificate with that on it. Bear in mind that humans make mistakes, and the people who issue birth certificates or type them up are humans. 02/18/1458 is patently wrong, but what do you do? Just guess that someone misread a 9 as a 4? What if the person in front of you is clearly too young (or old) to have been born in 1958? You can't just revoke someone's social security because someone screwed up.