Well, I think statistically, it does keep them from driving more or less anyway until they can demonstrate responsibility. It should be a no brainer to ban an armed outlaw with a record from possessing a firearm. Just like a drunk driver being disallowed from driving.  Do you suggest we continue to supply these trigger happy, unstable gun owners despite their dangerous behaviour, or are we going to take a hint and play it safe - for our kids if nobody else. ?