Burlington Northern Santa Fe trains make their way through a rail yard in Cicero, Illinois November 3, 2009. Warren Buffett's Berkshire Hathaway Inc will pay $26 billion to buy out railroad Burlington Northern Santa Fe Corp in what the billionaire investor called a bet on the U.S. economy. Reuters Pictures 2 weeks ago

Burlington Northern Santa Fe trains make their way through a rail yard in Cicero, Illinois November 3, 2009. Warren Buffett's Berkshire Hathaway Inc will pay $26 billion to buy out railroad Burlington Northern Santa Fe Corp in what the billionaire investor called a bet on the U.S. economy.