HASLET, TEXAS - NOVEMBER 3:   A locomotive sits idle on the tracks near the Burlington Northern Santa Fe Railway Intermodal Facility November 3, 2009 in Haslet, Texas. Billionaire investor Warren Buffett announced Tuesday his Berkshire Hathaway company plans to purchase 77.4% of Burlington Northern Santa Fe Corp. Getty Images logo Getty Images 27 months ago

HASLET, TEXAS - NOVEMBER 3: A locomotive sits idle on the tracks near the Burlington Northern Santa Fe Railway Intermodal Facility November 3, 2009 in Haslet, Texas. Billionaire investor Warren Buffett announced Tuesday his Berkshire Hathaway company plans to purchase 77.4% of Burlington Northern Santa Fe Corp.