Silicon Valley's Working Class Walks Tightrope

It may be home to Google, Cisco, Oracle and the other gleaming companies of the New Economy, but times are tough for the Silicon Valley's working class.

"Working people in Silicon Valley are walking an economic tightrope, and any unexpected medical bill or even a car breakdown can push them over the edge."

What happens to a community like this when the working class can no longer afford to live there?