SCHAUMBURG, Ill. – You could say that Jim Vena’s latest salvo in the war of words over the proposed Union Pacific-Norfolk Southern merger was downright Shakespearean. Which is to say that the Union Pacific CEO thinks the other Class I railroads doth protest too much. “If your competitor was doing something stupid, what would you do?” Vena said during an entertaining but often digressive talk Thursday to open the second day of the Midwest Association of Rail Shippers winter meeting. “I know what I would d ...