From Iraqi blogger Iraq the Model
Eyewitnesses in some volatile areas said that large numbers of militants have fled to Syria to avoid being trapped in the incoming security operations.
From the London Times Online:
DEATH SQUAD leaders have fled Baghdad to evade capture or killing by American and Iraqi forces before the start of the troop “surge” and security crackdown in the capital. A Former senior Iraqi minister said most of the leaders loyal to Moqtada al-Sadr, the radical anti-American cleric, had gone into hiding in Iraq.
From a quick skimming, it seems that militias are taking this a lot more seriously than the 2006 security crackdown in Baghdad. I consider this a good sign. Yes, they won't be arrested or killed in the sweep and still could be captured later. But if we could even get some temporary security in the capital, I think that would be an improvement over the current situation. We'll see how this plays out.
Both articles from Sullivan if memory serves.