Arstechnica has a (long) story up about HBGary and how they wrote backdoors for the US government.
This is very interesting look into the Black Ops of computer security. We all need to be aware of what is out there and what is going on.
If you have time give this article a read. If you don't know Ars articles are always well researched and written. Warning: It is a 5+ page article.
Back with more when I get time to research what they discuss here.