Stocks Drop 4%, Dow Skids 500, Led by Banks

The Dow Jones Industrial Average tumbled 519.83 points, or 4.62 percent, to finish at 10,719.94, wiping out the previous session's 429-point rally. The blue-chip index has had triple-digit moves in four of the last five trading days. - Stocks Drop 4%, Dow Skids 500, Led by Banks
Global Banking Crisis Fears Lurch to the Foreground - CNBC