In the last decade, a record number of pedestrians were killed by cars. The problem is complex and lacking a singular cause or solution. Jeff Michael, now a researcher at the Johns Hopkin Center for Injury Research and Policy, spent 30 years with the National Highway Traffic Safety Adminstration. He talks with Stephanie Desmon about the rise in pedestrian deaths and some of the possible causes, looking to Sweden as a model for rethinking our roads, and why despite hundreds of deaths a day, preventing road fatalities still gets short shrift in the overall conversation of transportation safety.