NYC Marathon Reviewing Race Security After Boston

May 3 (Bloomberg) -- Mary Wittenberg, chief executive officer of New York Road Runners, which stages the New York City Marathon, talks about the race's security and safety after last month's attack on the Boston Marathon. She speaks with Erik Schatzker on Bloomberg Television's "Market Makers." Greenhill & Co.'s Scott Bok also speaks. (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
32:28 - 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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