afaik the secret service does not provide security in Iraq.
Obama has said since the election that he supported having the private security firms there, and even opposed removing them while he was pushing his "withdraw from Iraq" line.
cool that the Iraqis themselves might be kicking them out, but given they are essentially a force of mercenary invaders, how much clout the Iraqis have with them is questionable.
So, under international law, at the end of the day, who has control of these guys. If the Iraqis want them out, could they kick them out? What about the States? Could the states kick them out if the Iraqis wanted them there? What if Xe/Prince wanted to stay and both wanted them out?