Public infrastructure is as essential to our communities as it is easily overlooked. A case in point is the humble sidewalk: constantly taken for granted, yet linked to nearly every pressing issue of local governance in urban, suburban, and even rural areas. From commerce, taxes, and property rights to policing, homelessness, and surveillance; from free speech and socioeconomic equity to public health and climate resilience—sidewalks, surprisingly, are at the core of numerous major debates. Professor Michael Pollack has written "Sidewalk Nation - The Life and Law of America's Most Overlooked Resource" and joins us to talk about.... sidewalks.