Traders work on the floor of the New York Stock Exchange

 
Traders work on the floor of the New York Stock Exchange
Traders work on the floor of the New York Stock Exchange March 5, 2013. The Dow surged to a new record on Tuesday, breaking through levels last seen in 2007 as investors extended 2013's rally. REUTERS/Brendan McDermid (UNITED STATES - Tags: BUSINESS)