The burden of proof then would lie with the proponent of an activity, rather than the public. Before we put another chemical into society make sure it is safe. If there's any question, don't do it. While we realize that human activities may involve hazards, people must proceed more carefully than has been the case in recent history. Corporations, government entities, organizations, communities, scientists and other individuals must adopt a precautionary approach to all human endeavors.
People have a duty to take anticipatory action to prevent harm.
The burden of proof of harmlessness of a new technology, process, activity or chemical lies with the proponents, not with the general public. Before using a new technology, process or chemical or starting a new activity, people have an obligation to examine a full range of alternatives including the alternative of not doing it. Decisions applying the precautionary principle must be open, informed, and democratic and must include affected parties. When you talk with your doctor about these problems or call the American Cancer Society they will quote you statistics that say that currently I in 3 people in the U.S. will develop cancer and that I in 4 will die from it. Another significant factor is exposure to chemicals in our environment, in our food, and in our communities.