Book excerpt: Complex Issues. Thoughtful Answers. When is it right to remove a feeding tube from a patient? Are health care workers entitled to conscience protections? Should contraceptives be used for medical purposes? Is medical marijuana ever OK? Medical and technological advances have left millions of Catholics grappling with tough issues--dilemmas that will only multiply as technology and medicine continue to develop at an ever-faster pace. In this updated and expanded edition of Life Issues, Medical Choices, two noted bioethicists explore fundamental principles of Catholic thought--in accessible, easy-to-understand language--to help you make decisions about complex medical and life issues.