As many as 400,000 people die each year, and a million are injured, by preventable medical injuries sustained in the U.S. health system. Collection of data to enhance understanding of how unintended medical injuries happen is an essential part of harm-reduction strategies. While health system data collection and reporting processes have improved in recent years, the scope and intractability of the medical injuries problem demands new efforts. The legal system could contribute valuable medical injury data to patient safety efforts but current practices largely prevent it. In medical malpractice claims where parties settle, case information is routinely protected from disclosure by confidentiality agreements thus any medical injury informatio...