If automation can unseat bus drivers, long-haul truckers, even cabbies, is any job safe?, asks Rice University computer scientist Moshe Vardi in the last day of an Associated Press series on the loss of middle-class jobs in the wake of the Great Recession, and the role of technology. Also, economists and officials at an AP debate today at the World Economic Forum in Davos, Switzerland say a host of new training programs are needed to rebuild the job market.