As Tech workers converged at San Francisco's Moscone Center this week for the annual Dreamforce Convention, a notable absence, as reported by numerous attendees, was the usual presence of littered streets, panhandlers, tent encampments, and public drug dealing and consumption.

For more, KCBS Radios Eric Thomas and Margie Shafer spoke with KCBS Insider Phil Matier and former mayor of San Francisco Willie Brown.