Chris Cox, vice president of product for Facebook Inc., right, speaks... News PhotoBusiness,California,Chief Executive Officer,Corporate Business,Event,Facebook,Finance,Headquarters,Horizontal,Listening,Man Made Object,Mark Zuckerberg,Menlo Park - California,Merchandise,North America,Silicon Valley,Social Networking,Talking,Technology,The Americas,The Internet,The Media,USA,Vice PresidentPhotographer Collection: Bloomberg 2013 BloombergChris Cox, vice president of product for Facebook Inc., right, speaks as Tech Lead Chris Struhar, from left, Chief Executive Officer Mark Zuckerberg, Director of Design Julie Zhuo listen during an event at the company's headquarters in Menlo Park, California, U.S., on Thursday, March 7, 2013. Mark Zuckerberg, chief executive officer and founder of Facebook Inc., discussed the social-network site's upgraded News Feed which includes bigger photos, information sorted into topics and a more consistent design across devices. Photographer: David Paul Morris/Bloomberg via Getty Images