Wall Street stumbles as oil slumps again

Wall Street stocks slid on Tuesday, hurt by pressure from a renewed drop in oil prices, undercutting momentum that had helped the market rebound from a sluggish start to the year. Equity markets this year have been tightly linked to the daily fluctuations of battered oil prices. "The markets are really worried that we are missing something here, that the global slowdown may be more significant than we are recognising and that slowdown could be causing oil prices to drop, and commodities prices i