When the Second Amendment was passed, "arms" meant MUSKETS, which took an hour to load and could barely kill a squirrel.  Nowadays, if a mentally ill, or even just confused 13-year-old (there are a lot of them) gets ahold of a semi-automatic, he/she can kill tens of people in the blink of an eye.

It's a whole new game now.  Let's at least take another look at the Second, discuss it in terms of 2017.