This isn't a list of everything they monitor. Just because Schneier isn't on this list does not mean that he isn't monitored.
What I find really funny is that most military networks seem to block Schneier's website but allow access to the Hannity show.
Curious. What category do they block it as a part of?
My experience with DoD networks is that they just tell you it's blocked, not why, and invite you to petition if you do need access to the site in question.