"As a practicing physician and longtime member of his hospital?s ethics committee, Dr. Barron Lerner thought he had heard it all. But in the mid-1990s, his father, an infectious diseases physician, told him a stunning story: he had physically placed his body over an end-stage patient who had stopped breathing, preventing his colleagues from performing cardiopulmonary resuscitation, even though CPR was the ethically and legally accepted thing to do....