Foods and food ingredients can be adulterated both intentionally and unintentionally. In its efforts to protect the food supply, the U.S. Food and Drug Administration (FDA) undertakes both food defense and food safety activities. Food defense is the effort to protect the food supply against intentional contamination due to sabotage, terrorism, counterfeiting, or other illegal, intentionally harmful means. Potential contaminants include biological, chemical, and radiological hazards that are gene…