Article Photos: Stocks end flat after HP shocker and Fed warning 3/3

  Traders crowd a a Barclays booth during early trading on the floor of the New York Stock Exchange on Tuesday, Nov. 20, 2012. Stocks sank early Tuesday on Wall Street. Hewlett-Packard stock suffered a big decline after its executives said that a company HP bought for $10 billion last year lied about its finances. (AP Photo/Bebeto Matthews)