We don't really notice street addresses, but they're integral to how modern society works. They've become integral to our identity in ways we don't really notice... until we don't have one. But where did street addresses come from? Who decides what names or words can be addresses? And how does a government's approach to addresses impact its people? This week host Rachelle Saunders speaks with lawyer and writer Deirdre Mask about her new book "The Address Book: What Street Addresses Reveal About Identity, Race, Wealth, and Power".