China has infiltrated the largest signals intelligence collection facility outside of Fort Meade.

http://washingtontimes.com/article/20071221/NATION/676409066/1001

Military and civilian personnel assigned there are dutifully polygraphed.

What the hell happened?!!!!@

For some thoughtful commentary see:

http://idolator.typepad.com/intelfusion/2007/12/did-chinese-int.html

http://blog.wired.com/defense/2007/12/from-the-intrep.html

I also take exception to the following from the 2nd link:

"Chinese is one of the toughest languages to learn. Having lived and worked with Chinese linguists for years, I know that you can spend almost every waking hour trying to master the subtleties of tone and volume of vocab -- and still come up short when compared to a native speaker. Which is why those people tend to occupy the top tier linguist positions, correcting and/or refining the work of those with lesser expertise. A compromised native son or daughter – the default tactic of Beijing spymasters - could have a significant impact on our understanding of Chinese activities and intentions (based on signals intelligence) over time."

Yeah, well I WAS a chinese linguist in the SIGINT field for years and can tell you that whether or not your "tones" are accurate don't matter diddly squat.  Listening ability, with a really good knowledge of the target is paramount.

Those "native" linguists I worked with, for the most part didn't know squat.  Didn't know technical terms, didn't know the difference between a aircraft carrier and a M1 abrams tank!

Having BOTH a native speaker of the SOURCE language AND a technologically knowledgeable native speaker of English was optimal.

Actually, there has always been a heated debate regarding whether a native or non-native is best.