Dollar, global stocks trampled in stampede to safety

Wall Street was expected to open almost 2 percent lower. "What is different to previous times is that the bad news in now coming from everywhere, China, Portugal the U.S. the commodity sector the banking sector. Intense demand for ultra-safe U.S. Treasuries drove longer-term bond yields to three-year lows and flattened the yield curve in a way that has presaged economic recession in the past.