DNA exonerations of wrongfully convicted defendants have shone a new light on an error in American criminal justice and revealed a gap in our system's design. As discussed in the National Institute of Justice (NIJ) Special Report Mending Justice: Sentinel Event Reviews (NCJ 247141), published in September 2014, some believe the criminal justice system lacks a feature that medicine, aviation, and other high-risk enterprises see as critical: a way to account for tragic outcomes and using those lessons to reduce risk of recurrence. Can the criminal justice system develop this capacity for "forward-looking accountability"? Can it accept error as an inevitable element of the human condition and study known errors in a disciplined and consistent way? Can it share the lessons learned from these studies to prevent future errors? Can it focus on future risks instead of on blame for the past?