Never meant for identification purposes, just like social security numbers: https://www.npr.org/templates/transcript/transcript.php?storyId=593603674 https://w

Never meant for identification purposes, just like social security numbers: https://www.npr.org/templates/transcript/transcript.php?storyId=593603674 https://www.npr.org/templates/transcript/transcript.php?stor... (interesting Planet Money episode on the history of the SSN)