Menlo Park, UNITED STATES
Facebook CEO Zuckerberg introduces a new feature called "Graph Search" during a media event at the company's...
Facebook Chief Executive Mark Zuckerberg introduces a new feature called "Graph Search" during a media event at the company's headquarters in Menlo Park, California January 15, 2013. REUTERS/Robert Galbraith (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY)