We live in an anxious world, riddled with unpredictable threats to our safety and unexpected hatreds directed toward us. It is easy to obsess on the terrors around us, about which we can do little, and lose perspective on the real and sometimes devastating risks that we encounter in our daily lives. These everyday risks need to be regularly revisited — to remind ourselves that they can be reduced with the application of sharp minds, careful scholarship, and political will.

Medical errors in the American health-care system are just such a problem. The risk of death or serious injury at the hands of the American health-care system is not trivial, as we have learned over the past few years as the health-care establishment has acknowledged the level of iatrogenic injury in the system. If, as the Institute of Medicine reported in To Err Is Human, as many as 100,000 people every year are dying in hospitals, clinics, and doctors’ offices as the result of actions or omissions that could have been avoided, then this is a social problem of great magnitude and one that the law must try to correct.