US STOCKS-Wall St drops as Washington deadlock continues By: Reuters: Company News October 07, 2013 at 09:51 AM EDT * Indexes off: Dow 0.99 pct, S&P 500 0.85 pct, Nasdaq 0.8 pct Read More >> Related Stocks: Blackberry Ltd Cisco Systems Cooper Tire & Rubber Company Exxon Mobil Google, Inc. SAP Ag ADR Wells Fargo