So, as I understand your replies -
(1) Any risk of serious threat justifies being armed, no matter how remote or unlikely it is to manifest.
(2) Because there have been school shootings in the past, #1 justifies arming teachers or school staff.
(2A) & (3) Only responsible people should be allowed to carry guns in public. If so, how is such capacity for responsible gun ownership (which should not be limited unduly) to be determined? What limits should exist? More bluntly, who is not capable of training, maintaining and handle the responsibility of a firearm? I'm sorry if this comes off as singling you out - however, your answer suggests that gun ownership is a privilege rather than an inalienable entitlement, and begs the questions of when and how that entitlement is lost, and how could such a shift in attitude (guns transitioning from being a "right" to a "responsibility") be achieved?
(4) Guns + booze = not good. Completely agreed. In the scenario proposed, how could we prevent someone from the firearms dorms from going to the non-firearms dorm (or indeed, to any party held on campus) and racking up a body count?
(5) Afghanistan is an occupation characterised by asymmetric warfare - and you're right, it's a long and brutal struggle where a group is better able to resist when armed. My understanding is that there is no similar coordination or doctrinal consistency throughout the USA which would facilitate a response in the manner of the Taliban (though one could arise under duress). Military personnel are notoriously unwilling to turn their arms on citizens they signed up to protect from external threats. Tyranny, or at least what I understand as such, would be closer to what's happening in Syria. The risk of this occurring in the USA is vanishingly small. However, and I reiterate - if true tyranny emerged and took control of the US military, how would a counter-revolution succeed through force of small arms?
I think we're broadly on the same page as far as #1 & #3. You and PZF both seem to view gun ownership as a responsibility, not a positive right (though one which you can assert as long as you demonstrate the necessary competence). Again, no argument there. However, you assert that most people "are quite unfit for self-defence" (which, again, is truer than most would like to admit). Implicit in that statement is an observation that guns in the wrong hands, or in inept hands, are a threat which should be controlled or limited somehow. I'm not sure how this squares with your interpretation of the Second Amendment and what civilians should have access to. How should such unfitness be determined? Where is the cut-off point?
I can't say I agree with Mr Swann's observation, which comes off as a straw man argument to me. Of course the Second Amendment was about arming the populace to resist threats. Only a wholly originalist reading of the Amendment, taking no account of changes in weaponry and military hardware between 1791 and 2012, could support an interpretation that it justifies "true equality of arms" between 21st-century civilians and military personnel. We'll have to agree to disagree on this point.
Having noted your comment about the Columbine shootings - Would arming teachers not simply make teachers the first targets of anyone still intending to commit a mass shooting at a school? Better a trained shooter than kids, to be certain, but if teachers were shot first, would not the outcome be the same as if they were unarmed (particularly if, as seems to have been the case in Connecticut, the shooter was wearing body armour)?
chadachada123 said:
Truthfully, my biggest thing is that I simply don't trust humans, and would like to defend myself, and think others should be able to defend their lives too without waiting ten minutes for help from police who don't even have a legal obligation to protect them.
I get that, and that's a fair view. However, it seems predicated on the existence of a threat to life requiring response. How often does such a threat exist? You suggested that there was a climate of fear, which is not reflective of the actual risk outside of a few areas. It's probably fair to say that Eric Harris, Dylan Klebold, James Holmes and Adam Lanza were not in their right minds and likely incapable of being dissuaded through rational means. If we agree on that, then how could we prevent the threat from manifesting in the first place, rather than preparing a countermeasure for a highly-unlikely situation?
PS: Enjoying the discussion, trying to keep it civil - no offence is meant, just trying to expand on the OP's question.