USA TODAYFutures plunge as oil falls, investors digest Yellen remarksUSA TODAYU.S. stocks closed mixed Wednesday as oil prices fell again and investors digested remarks from Yellen's testimony before Congress on the state of the economy. In her stateme …

USA TODAYStocks set to plunge: Dow futures down almost 300, oil below $27USA TODAYU.S. stocks closed mixed Wednesday as oil prices fell again and investors digested remarks from Yellen's testimony before Congress on the state of the economy. In her sta …