Is the CIA scanning Craigslist.org?

So, I'm an IS Manager with a rather large corporation and in my spare time to try and earn a couple extra bucks I fix PC's on the side. Most of the time I wind up working for friends and family and don't have the heart to demand money since most of them have very little and I'm not destitute. Anyway on to the meat of the story.

To try and ramp up business I posted an ad on Craigslist.org for PC repair. It's just a basic ad to advertise that I do mobile PC repair and tutoring. To find out how effective my advertising is I inserted a small tracking image into the ad that links back to my own personal webserver. So, by viewing my web logs I can see who looked at the ad, when they looked at, and where they came from. Obviously, the few hits I do get come from Verizon or Comcast users. But one of them looked "different". That IP was 198.81.129.194. I did a reverse DNS lookup and it came out to relay2.cia.gov The CIA? What's going on? I can only speculate. As far as I know I'm not near any of the CIA offices so I can't imagine it would be an employee surfing while at work for someone to fix their PC.

Does the CIA think terrorists and spies are advertising on Craigslist?