It's not evil to bring a condom to a shooting range. It's just inappropriate if you mean to use it and pointless if you don't.
1. The use of contraceptives is
malum in se.
2. To my knowledge, that actually wouldn't be that bizarre. Don't some people carry at least one with them wherever they go "just in case"? For example, in one's wallet?
And I noted an example of that good. The presence of guns serve no legitimate education purpose while raising the level of probability of a negative outcome.
I deny this. The presence of guns indeed may serve a legitimate educational purpose: preventing the students from getting shot to bits by maniacs with guns.
No, trad. It also introduces additional punitive measures and may cause even those disinclined by practice to obey that sort of law to reconsider if the penalty is severe enough and known. A simple cost/benefit analysis at the fundamental level of self interest.
You basically just repeated what I said: "It prevents normally law-abiding citizens from getting into shoot outs with each other. And that's about it."
In any case, I don't disagree with the necessity of (at least certain) gun-free zones in general. There should be exceptions, though (teachers, for example).
Well, no. The law coupled with no other measure would do that, but it isn't without additional considerations and measures.
Were there additional considerations and measures either at 1. the Colorado movie theater or 2. the recent school where the mass shooting took place?
The real question involves their effectiveness or failure and the need for additional measures and their effectiveness. I noted a couple of potential solutions. You've stepped around them.
Yes. I "stepped around" your suggestions because I didn't really disagree with them. Armed gaurds and metal detectors, right? Yes, those seem like good measures. [Though, it does strike me as a potentially expensive measure.]
Arming the teachers seems like another good measure.
Catastrophically, profoundly wrong headed response. There are better, safer ways to go about this and you're not even trying to explore them. You seem to have entered with a singular vision and it's blinding you to important considerations.
You took this out of the larger context. My claim isn't that everyone should be allowed to take their guns wherever they want. My claim is that if people, generally speaking, have guns, then we can't pretend as though there are certain places where they aren't going to be taken. There's a chance that people are going to take guns into "gun-free" zones and start shooting people. At least some people should be able to have guns in these "gun free zones" in order to defend themselves.
Have you ever been under fire? Absent serious training your flight impulse will get you killed or, if you have a weapon and lack that same sort of discipline/training, you're as likely to kill someone else by accident and/or not come close to hitting anything you're aiming at. The reason troops are put through under fire simulation after they've had extensive drill in proficiency in the use of a weapon is that without understanding the impact, the personal impact of adrenaline on how you shoot and even think you aren't prepared to use that weapon, won't be able to use it properly.
The absolute worst idea here, unless you mean to employ teachers who are former soldiers and place that obligation in their hands, subject to review and rotation, would be to put civilians in that position.
Two points:
1. Soldiers have that kind of intensive training because there's a chance that they'll have to fight other people who have had the same kind of intensive training. Do policemen have to undergo the same training that soldiers do? Self-defense in a war-zone and self-defense at, say, a movie theater just strike me as generically different.
Did either the school shooter or the Colorado movie theater shooter have military training?
2. The last thing you said doesn't follow. What seems to follow is that teachers 1. should have access to guns in school and 2. they should be trained to use them. It doesn't follow that teachers should 1. be ex-soldiers or 2. should receive military training.
To my knowledge, people who have concealed-carry permits have to undergo training on how to use fire-arms. Why not just extend the requirment to teachers and school administrators?
It wouldn't even be necessary to have all the teachers buy a gun and carry it around. As per my previous "in case of emergency, break glass" idea. We plan for contingencies all the time. That's why there tend to be things like fire extinguishers and fire-arms around public buildings.