UNLABELLED: This activity is designed for primary care physicians, internists, and general audiences. GOAL: To provide the reader with a basic understanding of the controversy surrounding population-based prostate cancer screening and of the tools needed to conduct early detection programs for prostate cancer among enrollees. OBJECTIVES: 1. Become familiar with the national debate regarding population-based prostate cancer screening. 2. Learn the essential elements of prostate specific antigen testing for patients. 3. Understand the cost-effectiveness and medico-legal/informed consent issues surrounding prostate cancer detection and screening.