How private buses became a symbol of San Franciscos divide
Video duration: 7:49
Every weekday morning, dozens of sleek buses roll through the heart of San Francisco, picking up a cargo of workers commuting south to companies like Google, Facebook and Apple. But critics say the buses are clogging city bus stops and are symbolic of the disparity in wealth between the new tech workers and the long-time working class residents. Special correspondent Spencer Michels reports.