Caterpillar R&D Tests Machines in a Virtual Lab

Aug. 10 (Bloomberg) -- Carol Massar takes an insider look to Caterpillar's research and development lab. She speaks on Bloomberg Television's "Bloomberg West." (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
09:50 - 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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