[room271]

It is vitally important to recognise the complexity and uncertainty in deciding on these kinds of big issues. There will rarely be clear winners, and evidence is almost always partial and flawed.

BUT as a non-American citizen I can't understand why you would allow citizens to own semi-automatic weapons. The only purpose of these weapons is to kill other people (or hold the threat of such). Why not allow weapons for hunting (rifles, etc.) but criminalise anything allows you to simply hold down the trigger and count.