Mass memorials to the victims of traffic violence are a rarity on American roads. But it wasn't always that way — and there's a fascinating history behind why so many lost lives have become virtually invisible in the public realm today.

On this episode of The Brake, Kea Wilson sits down with historian and author Peter Norton to talk about how America used to memorialize car crash deaths in the early days of the automobile, and why automakers invested so much into reshaping the way we grieve. And then they chat about what it might take to bring the national traffic violence epidemic out of the shadows, and why even everyday non-lethal road trauma deserves to be called out. Listen in, and learn more about traffic violence memorials in our earlier coverage.