Wall Street retreats as tech shares weigh
* Investors were also looking ahead to an interest rate decision from the Federal Reserve later in the week, with expectations that the central bank will further cut rates.
* The Dow Jones industrial average fell 48.26 points, or 0.56 percent, to 8,581.42. The Standard & Poor's 500 Index was down 5.68 points, or 0.65 percent, at 874.05. The Nasdaq Composite Index lost 15.16 points, or 0.98 percent, to 1,525.56.
(Reporting by Leah Schnurr; Editing by Theodore d'Afflisio)