US STOCKS-Wall St drops on global economic worries By: Reuters: Company News January 14, 2015 at 09:56 AM EST * Indexes off: Dow 1.3 pct, S&P 1.01 pct, Nasdaq 0.71 pct (Updates to market open) Read More >> Related Stocks: Freeport-McMoRan JPMorgan Chase & Co Tesla, Inc. Wells Fargo