dmm is right. Citation: http://www.economist.com/node/16636101 http://www.economist.com/node/16636101 There's a reason Berkshire Hathaway spent 34 billion to bu

dmm is right. Citation: http://www.economist.com/node/16636101 http://www.economist.com/node/16636101 There's a reason Berkshire Hathaway spent 34 billion to buy Burlington Northern Santa Fe Corporation.