I think the CIA is just looking for an excuse to play the game on the job.
http://blog.wired.com/27bstroke6/2008/02/nations-spies-w.html
Some great responses from that one.
But as for my opinions, this seems like bad choice of spending and a waste of time. I mean, WoW players are violent people anyway, how is the government going to find anyone unusually more so?