Artificial Intelligence (AI) -- the ability of machines to make decisions that normally require human expertise -- already is changing our world in countless ways, from self-driving cars to facial-recognition technology. But the best -- and maybe the worst -- is yet to come. AI is being used increasingly in health care, including the possibility of a radiology tool that might eliminate the need for tissue samples. Knowing that, the people leading a new project called Ethical-AI for the Center for Practical Bioethics (CPB) are trying to make sure that AI health care tools will be created and used in ethical ways. The ethical questions the project is raising should have been considered in a systematic way years ago, of course.