This 1994 presentation was provided at the 1994 Annual Meeting of the Society For Risk Analysis in Baltimore, MD. This presentation discuss the role of values in risk decision making. While risk is often thought of in terms of quantiative measures such as probabilities and expected losses, decision making must balance risks with the values of society. The most mathematically effecient outcome is not always the most desirable, especially when the consequences are huge, such as threats to the entire global ecosystem.