Recently I've been readings lots of rumors about an attack on US forces in Baghdad on October 10th that left over 300 dead and over 150 seriously injured. Specifically, at 'Forward Base Falcon'.
I found the full story and list of dead here:
http://www.tbrnews.org/Archives/a2547.htm
About a quarter down the page. That's the story that has been circulating the most.
In addition, I found these reports/news stories about the attacks and cover up:
http://sf.indymedia.org/news/2006/10/1732758.php
http://blogs.salon.com/0002255/2006/10/27.html
Why isn't this being reported on? 300 dead is a substantial number that one would think is newsworthy. Many people have already surmised that if this news leaked before the election it could swing the vote in a big way for all of the voters still sitting on the fence.