Andrew Sullivan hits the perfect pitch on the necessary reaction to this week's events in Iraq:
"[W]hat I do know is what I learned from Hobbes. The entire enterprise of attempting to bring some kind of normalcy to Iraq can only be accomplished if the coalition forces have a monopoly of violence. Right now, we don't. At this point, establishing that monopoly is far more important than in any way showing reluctance to take the battle to the enemy. The Sadrists must be confronted and as effectively as possible. If that means more troops, send them. If that means more firepower, get it."
When he's not talking social issues, he's usually talking sense.