Also this
http://www.youtube.com/watch?v=TyXcY7NJHFg
---------- Post added 2013-03-24 at 10:30 PM ----------
True enough, but ultimately the court could interpret nearly anything the way they want. I'm just saying that the more "accepted" belief of the common use standard is the one described in the piece I linked. The common use standard can be twisted to support a ban, just as the commerce clause was interpreted in an unconventional way to support the healthcare mandate in my opinion.