Filling in for Joan, Turi Ryder talks to Sara C. Bronin, legal scholar, architect and author of “Key to the City: How Zoning Shapes Our World.”

Catch "Joan Esposito: Live, Local and Progressive" weekdays from 2:00 to 5:00 p.m. Central on WCPT (heartlandsignal.com/programs/live-local-progressive).