The explosive moves in the stock market recently are testing the resolve of investors worldwide, and today there was no relief. The Dow Jones Industrial Average fell 389 points, or 3.2% to 11,781, the Nasdaq fell 3.88% to 2,622, and the S&P 500 fell 3.67% to 1,229.

The market opened lower this morning on concerns out of Italy and whether Prime Minister Silvio Berlusconi would truly resign his post due to his failure to stem the country's debt crisis....