"They seemed to think that there was more threat from inside the base from contractors than from outside."
I have to say the local national labor force that showed up at the gates of Balad/Anaconda every morning was a little worrisome.
A third country national working for KBR was caught red handed trying to steal a rifle from a sleeping trooper's hooch, at some odd hour of the morning.
Wnen I was in Anaconda a VBIED detonated between the blast walls only killing the driver.