Explosion Expert Breaks Down the Boston Bombings

April 15 (Bloomberg) -- Two powerful bombs killed two people and injured scores near the finish of the Boston Marathon, turning one of the world’s oldest road races into bloody chaos. Rhode Island University Professor Jimmie Oxley speaks on Bloomberg Television's "Bottom Line." Note: Footage may contain graphic content. (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
44:09 - 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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