The other part of the equation is that behavior like this is usually unpredictable. It's like trying to judge when and where an earthquake will happen. You can see all the factors that make it a possibility but judging when to make the call to evacuate is pretty much impossible. I'd like nothing better than to prevent these lunatics from obtaining implements of destruction but that can't be accomplished without taking away other rights and justifying the "reasonableness" of taking away any rights is tentative at best.
The facts of the matter are that the vast majority of people are law abiding, sane and rational. Some small percentage of people are not. It's is the antithesis of freedom to apply judgement and consequences to the whole of a population simply because a limited percentage will not abide by the common rules of the society.
Ryan Lanza was shooter per CNN with no known connection to the school as of yet; apparently one of his parents found dead in mom's house (I assume it was his mother)
"When the people find they can vote themselves money, that will herald the end of the republic." -- Benjamin Franklin
I live across the state from this elementary school...the people are frothing at the mouth.
"We ain't a sharp species. We kill each other over arguments about what happens when you die, then fail to see the ******* irony in that." - Justin Halpern
These are all politically contentious issues, I'm not seeing a sacred cow other than being tasteful enough to leave one's political advocacy to a more appropriate time in all cases.
Thank you, Quazi!