At the open: Dow -2.4% to 7590. S&P -2.5% to 795. Nasdaq -2.1% to 1513. Crude -4.5% to $50....

|By:, SA News Editor
At the open: Dow -2.4% to 7590. S&P -2.5% to 795. Nasdaq -2.1% to 1513. Crude -4.5% to $50. Gold -0.7% to $917. 30-year Tsy +0.81%. 10-year +0.56%.