can't resist, sorry
Well, I'm no brain surgeon, just a health scientist. And what the research clearly shows is that NutraSweet is only dangerous if you are a rat fed ridiculous amounts by mad scientists. No cases of cancer in humans have been linked to any of those artificial sweeteners (ask the Canadian Cancer Society, or the American one). Fat, however, is though to be the new smoking. That is, being overweight is now thought to be the leading risk factor for cancer after smoking. So being fat is a real risk, not imaginary like NutraSweet.
Anyway, just trying to bring some perspective here. This is relevant to the BT issue, since all of those things we do while driving, even if we don't use our hands, can increase the chances of a traffic accident.
Damn, I sound like my mother.