BREAKING NEWS: Stocks Plummet Late, Dow Loses More Than 500 Points

A host of concerns sent stocks plunging Wednesday, erasing the hefty gains of Tuesday and introducing even more uncertainty and volatility into the equities market. Those concerns include the health of European banks, uneasiness about the Fed's intent to keep rates unchanged for two more years, and the ongoing technical deterioration of the major market indices. The Dow lost 520 points (it's