On Tue, 02 Feb 2010 15:51:17 GMT, (Doug Miller)
wrote:
Who gets to define "dubious characters"? Sounds like you're proposing banning
the sale of a legal product on the basis of what the purchaser *might* do with
it in the future.

Your current criminal code already decides much of it. It's already
being done as in people on parole and people who have committed
serious crimes in the past.