We have seen discussion of "The Individual Mandate" as part of the slowly implementing "Obama Care".
It was bound to happen, and may have happened elsewhere as well, but here is a letter to the editor in Syracuse, New York. Mandate gun ownership.
I got the link from this web site, from a link from the Instapundit.
Nothing tests an idea like taking it to an extreme to see how it feels.
Regards — Cliff