US stocks might decline slightly today after Japan revealed a souped-up stimulus plan and America's account balance swung to a bigger deficit than forecast. The US trade deficit widened to $48.7 billion in November 2012 from $42.1 in October. Economists expected the deficit to narrow by $1 billion. Export and import prices met expectations both falling 0.1%. Stock futures were slightly lower this morning. Futures on the Dow Jones Industrial Average (INDEXDJX:.DJI) fell 0.10% to 13 393 and S&P 500 (INDEXSP:.INX) futures slipped 0.04% to 1 46.40. Nasdaq (INDEXNASDAQ:.IXIC) futures are down 0.03% to 2 736.25. Wells Fargo (NYSE:WFC) ...