David Zipper, a senior fellow at the MIT Mobility Initiative and a Vox contributor, dives into the alarming rise in pedestrian fatalities linked to larger vehicles. He discusses the National Highway Traffic Safety Administration's groundbreaking proposals for new safety regulations targeting oversized trucks and SUVs. The conversation highlights how these changes aim to protect pedestrians, explores the cultural shift towards bigger vehicles, and critiques the automotive industry's response to enhance safety. Zipper emphasizes the urgent need for stricter regulations to ensure safety for all road users.