I'm also not American, so GUEST,Bardan's caveats apply to me as well. But I'd like to stress that as an outsider I find this an interesting thread, so don't assume that because US-pro and US-anti gun lobbies know each other's arguments by heart it is not worth repeating them once again.

My comment to Bardan, though, would be that because people drive frequently the opportunity to observe and penalise drunk or dangerous driving is common and in itself goes a long way to stopping fatalities. Anyone waving a gun about recklessly (in a crowd, for example) should be stopped as well - I reckon both lobbies would concur on that one - but it's very much harder for the police to observe reckless gun handling in general and so as a way of prevent accidents is not really like the driving example.