The Presidential election was barely over before we heard the first whispers of 2012, shorthand for who will be running in four years. Will it be Hillary? Mitt? Sarah?In keeping with the thinking that all politics is local, the talk in railroad industry circles these days is fixated on 2011. Why, you ask?That is the year that four of the industry's major trade associations will co-locate their trade shows. The joint event, formally known as Railway Interchange 2011, will be held in Minneapolis on Sept. 18-21, 2011.