Protecting the public's health has recently regained prominence in political and public discussions. Threats of bioterrorism following September 11, 2001 and the deliberate dissemination of anthrax later that fall, the reemergence of novel or resurgent infectious diseases, (such as the West Nile Virus, SARS, influenza, avian flu) and rapid increases in diseases associated with sedentary lifestyles, poor diets, and smoking (e.g., heart disease, diabetes, cancer) have all raised the profile of public health. The U.S. government has responded with increased funding, reorganization, and new policies for the population's health, safety, and security. Politicians and the public more clearly understand the importance of law in improving the public's health. Recognizing that many public health laws have not been meaningfully reformed in decades, law- and policy-makers and public health practitioners have focused on the legal foundations for public health. Laws provide the mission, functions, and powers of public health agencies, set standards for their (and their partners’) actions, and safeguard individual rights.