Some of the tech industry's most vaunted companies revel in their origins as mavericks or rule-breakers, having flouted regulations in the name of disruption. That kind of risk-taking is celebrated in Silicon Valley but punished in other places, most notably minority communities. In this episode: A legal advocate for low-income entrepreneurs talks about the hurdles her clients face, and a husband-and-wife team of street food vendors share what they've learned making the transition from the informal to the formal economy.