"This stuff ought to be in the drinking water!"

I remember hearing that from doctors when they first found out how effective the early cholesterol-lowering drugs, known as statins, were. Of course, I also read a couple of articles where at least one doctor thought Prozac, an anti-depressant that belonged to a new class of  drugs, ought to be given to everyone - that way everyone could be happy all the time (true, I did read that, though it was short-lived). I think most doctors and...