Americans today are nervous. They are worried about funny sounding chemicals in our food, water, and air. It is no wonder people are concerned; the popular press has tolled a litany of potential cancer hazards in our environment. We have heard that hamburgers may cause mutations, that drinking hair dye is no good for us, that saccharin causes cancer in Canadian rats, and that the mild sedative one needs to digest all this good news has just been banned. There are some times when the only solution seems to be a good stiff drink, as long as it is not Scotch—or beer. These may cause cancer, too!