We have had our problems, but haven't had ANY mass shootings at schools!
Dunblane, phoenix ?
The right to bear arms was built into the US constitution to ensure that militias could be formed at any time for defence, wasn't it? . My history of the American revolution, or war of independence, according to where you're looking from, is hazy, but I would imagine that at some time the colonists were banned from forming militia. That seems to me to be the sole reason for enshrining it as a 'right' in an age when guns would be widely used for hunting food and personal defence. But I don't imagine the Founding Fathers intended it to be the right to shoot anyone you fancy...