The 2nd amendment was created so people could own guns in order to be able to quickly form a National Guard (the year 1791, the US was poor and was still far from having established the level of Federal government's involvement in local affairs).
Basically this trend toward being able to own any gun for any use without limit is a rather new construct skewed far from the Forefathers' intent in the Bill of Rights. It was originally so we could raise a defensive army quickly in the formative years of our nation. The propaganda machine gun has fired many more bullets of Spin on this issue than real bullets.
Even in the mid-20th century, we didn't have this "right" for everyone, regardless of mental handicap or illness or malicious intent to have large mag semi-automatics.Originally Posted by http://en.wikipedia.org/wiki/Second_Amendment_to_the_United_States_Constitution
For reference, I have 5 firearms in the room with me right now, and my family probably has enough firepower to contribute heavily to such a militia and my father and I have a combined 40 years of US military service... that doesn't mean I think I should have such a privilege no matter what.