A first-time union contract has been a life changing experience for 200 bus drivers who transport high-tech workers to and from their jobs in Silicon Valley. The drivers work for Compass transportation ...Their passengers are tech workers at Apple, Yahoo, Genentech, Paypal and several other large tech firms,..Salaries of the passengers average $125,000 a year – about 6 times what the bus drivers have been earning...Tom Herriman reports.