Cramer: Add Some Locomotion to Your Portfolio By: CNBC.com News January 23, 2013 at 18:17 PM EST "Right now we have a roaring bull market in the railroads," said Jim Cramer. But how do you harness the runaway bull? Read More >> Related Stocks: American Railcar Ind CSX Corp Freightcar America Greenbrier Companies Kansas City Southern Trinity Industries