Facebook to Beat Twitter to $100B Valuation: Kerner

May 2 (Bloomberg) -- Lou Kerner, Founder of Social Internet Fund, discusses social networking sites and their ability to keep users engaged. He speaks on Bloomberg Television's "Bloomberg Surveillance." (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
53:10 - Bloomberg's Francine Lacqua and Manus Cranny report on today's "Top Headlines." They speak on Bloomberg Television's "The Pulse." (Source: Bloomberg)
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