Along with the long pattern of tech industry growth in Silicon Valley, there have been slow burning tensions in the San Francisco Bay Area. They’re related to class, public services, and the idea of good and bad disruption. Private busing for tech workers in San Francisco has raised hackles of local residents for using public bus stops. And this week a bunch of protesters showed up outside the house of a Google engineer responsible for the self-driving car program. Cyrus Farivar of Ars Technica has been reporting on the story for Ars Technica, and tells Marketplace Tech host Ben Johnson the latest. Click the audio player above to listen to the interview.