Other posters have already pointed out the specific problems with what you wrote, but what bugs me more about this post, and the thousands more like it, on just about any story dealing with any scientific topic, is the inherent assumption that some random dude on /. has seen an obvious logical hole that the people whose job it is to study the subject every day for years have missed, usually based on said random /.er's half-remembered high school "science class" or undergrad Physics 101 class. Now, this is certainly possible--in all fields, amateurs sometimes see things that the professionals miss--but it's really not the way to bet.

You may argue that making guns harder to get, like here, reduces this kind of thing. That may be correct. But no matter what, people can get anything, and they will, if sufficiently demented, do something bad.

What's the answer to that?

I would agree that there should be a basic understanding, but really, most of what you need to know for daily life could be done in a month or two at most freeing up time for other subjects.

This ban has nothing to do with second hand smoke. It's intended to reduce insurance and disability costs for the employer.