As an American living in Ireland, I live in a society here where guns are strongly regulated and controlled, whereas back home, it seems one tragedy after another...that said, I do support the 2nd Amendment, which was written in the 1780s and referred to muskets for protection, not assault weapons. I agree with a rifle for protection, but there is no need for ordinary people to have any other type of fire-arm. I hope that Obama does try to limit the sale of assualt weapons and/or large cartridge magazines (I think that's what the 100+ Rambo-style bullet cartridges are?). I also believe in self-defence and if somebody broke into my house here, I would use an old hockey stick to defend myself and my child (and cats, too!), but weapons as what have been used in the school shootings (not only in the USA sadly) -- outlawed, melted down and thrown away. Defence is one thing, attack is something completely different!
best wishes
ps. plus, back in 1780s, we were facing 'hostile' native americans (you'd be hostile too if somebody was taking your land...sigh) and....the british (who came again in 1812 (in the not very interesting, except that's how we got out national athemn, war of 1812.)