Last Friday Warren Buffett said he was anxious to pull the trigger on another large deal -- having only recently completed the Berkshire Hathaway (BRK.A and BRK.B) acquisition of the Burlington Northern Santa Fe Railroad. Since then, prognosticators far and wide have been making suggestions about his next possible moves.
Considering I wrote about the railroads the day before the BNSF announcement, I thought I would share a few ideas, old and new.
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Time was – not long ago – the railroads were the darlings of Wall Street. Extraordinary demand for commodities from emerging markets and strong international trade increased demand for rail transport. 

