Despite my location, my personal philosophy tends to fall to the left of the gun rights debate. That said, I understand that there are various reasons for the Second Amendment, and my comment was more to address the notion that it exists or was written solely for the purpose of enabling a rebellion against our own government. I will point out though that grenades are currently forbidden, and I believe they continue to fall under the "unusual" category of weapons. Whether or not someone will ever challenge that under the US v Miller case is anyone's guess. I doubt it will happen, but I'm happy that our judicial system allows that kind of challenge. There aren't any more whackos today than there were back then. People are people, and I don't think human psychology has changed much over the past couple hundred years - our understanding of it, maybe, but not the underlying psychology itself.