U.S. stocks fall on economic worries, dollar firms

U.S. stock prices fell on Tuesday on weaker-than-expected economic data, while expectations of a possible Federal Reserve interest rate increase lifted the dollar to near a two-month high against a basket of currencies. The drop on Wall Street stoked safe-haven bids for gold and less riskier U.S. and German government debt. Oil futures faded into the red after rising earlier on expected U.S. gasoline demand for summer driving.