No Arabic please, we're American

If you haven't already seen it, the Baker report brought to light a piece of epic stupidity in Iraq:

All of our efforts in Iraq, military and civilian, are handi-
capped by Americans’ lack of language and cultural understanding. Our embassy of 1,000 has 33 Arabic speakers, just six of whom are at the level of fluency. In a conflict that demands effective and efficient communication with Iraqis, we are often at a disadvantage. There are still far too few Arab language–proficient military and civilian officers in Iraq, to the detriment of the U.S. mission.

Why make such an easily fixable mistake? I suspect because they view most of America's large population of fluent Arabic speakers as security risks - although apparently other factors play a role too...

(Hat tip: Aqoul.)