Allen M. Hornblum is a Philadelphia based author who tackles controversial, historically under-covered topics in the areas of organized crime, Soviet espionage, and medical ethics. Prior to becoming an author, Hornblum had a varied career that included political organizing, college teaching, and many years in various facets of the criminal justice system. He has served in the Philadelphia Sheriff's Office, Philadelphia Prison System, and the Pennsylvania Crime Commission. Allen joins me to talk about his book "Acres of Skin: Human Experiments at Holmesburg Prison" the book documents clinical non-therapeutic medical experiments on prison inmates at Holmesburg Prison in Philadelphia from 1951 to 1974, conducted under the direction of dermatologist Albert Kligman.