I am certainly in agreement that no SS # should be posted on any public document. Sadly, with identity theft being a real threat in today's environment, we all have to be careful to protect our private information and SS #. If SS # were not allowed to be on public documents that would help the citizen to protect himself/herself. If there is so legitimate need to have the SS #, I would suggest only using the last 4 digits which would offer some protection. Thank you for your consideration of my comments.