you'd have to assume that there's a run on sales of semi-automatic rifles right now.
it's amazing to watch all the people saying that the most important thing is to make it easier to involuntarily commit adults. also one theory seems to be that adam lanza killed his mother and went on his spree after she threatened to commit him. it's sort of a classic response: our solution is to stigmatize or dehumanize a certain bunch of people who share some vague set of qualities with the disasterer. really what's being said is we need more incarceration, preventive incarceration based on a shared profile; or, people like that should interned until the conflict is over. and if you think that the psychologists have a good taxonomy of the relevant illnesses or account of their etiology or effective treatments etc - or, for example, if you think that psych profs are the sort of people who are likely to be developing such things in the future - you have not been watching; trusting them to convict or exculpate possible future criminals is an extraordinarily bad idea. we tried that kind of stuff before.