Even within the immediacy of our everyday lives we are threatened by dangers. We can't be sure whether our food has been contaminated with chemicals or not. Sometimes the plants and animals used for our food supply are treated with hormones to boost their growth. Hogs are given special additives to make their meat turn an appealing red color. Poisonous substances are sometimes used in foods as preservatives, flavor enhancers or dyes, not to mention the uncontrolled use of pesticides. Some of the people who sell these foods wouldn't dare eat them themselves!