Examined as an isolated situation, and through the lens of a rare and feared disease, Mr. Duncan’s case seems ripe for second-guessing the physicians and nurses who cared for him. But viewed from the perspective of what we know about errors and team communication, his case is all too common. Nearly 440,000 patient deaths in the U.S. each year may be attributable to medical errors. Breakdowns in communication among health care teams contribute in the majority of these errors. The culture of health care does not seem to foster functional, effective communication between and among professionals. Why? And more importantly, why do we not do something about it?