Two weeks ago The Wall Street Journal had a story titled "New Era Dawns for Rail Building." This article talks about the upgrading, expansion, etc. being done by American railroads. If you are not aware of this work, read the article at the following web site.
http://online.wsj.com:80/article/SB120179835382432337.html?mod=hpp_us_pageone
If you are a regular reader of Trains magazine, then you probably already know about most of what is covered in this article. We do not carry The Wall Street Journal, but we do carry Trains and several other magazines that cover news about railroads. Stop in and check them out.