Personally I would not put it past our wonderful government to have resources such as virii and root kits.
On the same note I would think that (theoretically) if they do then these programs would never be seen by mainstream society. They don't need to drop a virus wild on the net to see what’s going on. The good old men in black probly have access to more bandwidth than MIT and Berkley put together. Considering that it was publicly announced that the they were gearing up for acts of cyberterrorism, I would count on it. Want an example of one of the newer systems unveiled to the public go here:
http://www.mlive.com/newsflash/michi...3240232350.xml
Funny that it’s named the matrix, I'm sure that’s a coincidence. unless of course you've already seen the white rabbit.