While the exact sums can only be estimated, large amounts of money are wasted by the US health care system through fraud and by spending on tests, procedures, and medicine that are of no proven benefit. The adversarial fault-finding malpractice system siphons off large amounts of money from patients to lawyers and legal costs and is a deterrent to system improvement. While electronic records have the potential to improve care and lower costs through information sharing, their current implementation neither improves care nor lowers costs.