Stocks packed on more losses in late trading Thursday, with techs leading the downside action. The Nasdaq swooned 1.1%. Heavyweights Apple (AAPL), Google (GOOG) and Amazon.com (AMZN) were all lower. Meanwhile, the S&P 500 slumped 0.8% and the Dow Jones industrial average fell 0.6%. Turnover was again tracking sharply lower on both major exchanges. Michael Kors (KORS) stretched its loss to 7% and was on pace to close below its 50-day moving