Wasn't there some news article a few months ago about Warren Buffett buying a lot of shares in BNSF? BNSF is a major freight railroad.
Oh yeah, last November, here it is:
http://cjonline.com/news/local/2009-11-03/buffett_company_buys_bnsf
Speaking of railroads, had a good time as a bodyguard at this confab:
http://www.portfolio.com/news-markets/top-5/2008/06/25/No-Decision-in-CSX-Proxy-Fight/