Here is where we get to fish or cut bait time. The Iraqi Government* has told Blackwater to get out, and has suspended their license to operate.
This is not surprising. They are a bunch of trigger happy goons who have immunity from Iraqi law and the military’s UCMJ.
The interesting thing here is that Blackwater, nor (IIRC) any of of the other mercenaries employed by the US, are operating under an Iraqi license.
On the other hand, Blackwater is operating under a State Department contract, and while this may give them a measure of diplomatic immunity, it also allows them to be declared personae non grata, and forced to leave the country.
My guess is that Malaki will be told to pound sand, and thus the government will be revealed to be a puppet of the US formed primarily to allocate oil resources to American oil companies.
*Yes, I know that “Iraqi Government” is currently an oxymoron.