Compare and Contrast Ethics

Use the two case studies  Tuskegee Syphilis Studies (various authors, 1930s - 1970s) and 'Zimbardo Prison Experiment' (Zimbardo, 1972, 1973; Zimbardo et al., 1973, 1974)  to  compare and critically evaluate their ethical challenges and the strategies used to minimize or guard against harmful results in APA format with outline.