Unfathomable
More on the siege here (via Drudge). I don't think the story mentions that the terrorists are Muslim. And the Australian Prime Minister says it well: "The use of innocent children in such a brutal and indiscriminate way is a reminder of the evil heart and the evil mind of the terrorists. It's a time when people all around the world must think of those things that divide good from evil and right from wrong. No political grievance can justify such behaviour."