>Nadya, I am sorry, but I can't find where you placed your comments in your reply.
>
>Hilmar.

Hi, I placed them in the top about SSN as a bad example of PK. However, after I read the whole document, I saw, that you mentioned it by yourself, so my comment is not relelvant anyway. The other problem is that this text is hard to read, since it's so big. I would probably divide this FAQ by two parts to increase its readability. The first part may concentrate on PROS and the second - on CONS. But this is just my opinion, so you may disagree.