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)

TD Ameritrade CEO on $4 Billion Scottrade Acquisition
02:38 - Tim Hockey, TD Ameritrade Holding president and chief executive officer, explains why TD Ameritrade and its largest stakeholder, Toronto-Dominion Bank, agreed to buy Scottrade Financial Services for $4 billion. He speaks with Bloomberg's Amanda Lang, Oliver Renick and Scarlet Fu on "What'd You Miss?" (Source: Bloomberg)
  • TD Ameritrade CEO: Why We Bought Scottrade for $4 Billion
  • How the Third-Quarter GDP Report Might Impact the Fed
  • Options Insight: How to Play Amazon Ahead of Earnings