Bioethicist Ruth Macklin is the author of MORTAL CHOICES: ETHICAL DILEMMAS IN MODERN MEDICINE. Macklin discusses the decisions involved in medical care today and offers ethical insights into these emotional and morally difficult issues. Part 2 of 2. A WORLD OF IDEAS with Bill Moyers aired in 1988 and 1990. The half-hour episodes featured scientists, writers, artists, philosophers, historians -- some well-known, many never before seen on television.