Until Grade 11, I went to a one-room school attended by some 40 kids. All those who smoked are dead, some for decades, mostly from cancer of one type or another. I remember when lead was a neccesity for plumbing, literally piping poison into our gullets. There's no question that we're being exposed to a lot of bad things, some old and some new. There's also no doubt in my mind that a whole industry has sprung up to scare us out of our wits, intended or otherwise. This is a health hazard in itself, particularly when it creates unwarranted anxiety among young adults. I think we were healthier and happier when we were glazed in dirt and didn't know a lot of things.