Thanks for spotting this, Blissyu2. It is interesting that Wikipedia hired this guy. I've been wondering about a couple of things, and this explains them. One thing I found curious is that Jimbo implied when the SlimVirgin story came out that the Foundation was on top of the situation and watching it closely. He had nothing further to say. The other thing I found curious is that this hacker guy must have done a dump of the entire Wikipedia history record for anon edits, and then organized them by IP blocks, and did reverse lookups on the .gov domains and some corporate domains. While that was a possibility in my mind, it seems rather ambitious for a hobbyist doing it for fun. It also seems he'd need a fair amount of bandwidth and a few dedicated servers if he intended to maintain the tool and keep it humming at an acceptable level.
If he was hired by Wikimedia Foundation and had data-access support on Wikipedia for the project, that explains it. This project was bigger than my plagiarism project (which required 29,000 Scroogle searches on some 12,000 Wikipedia articles), and that took several hours a day for six weeks. An entire history list of anon edits for (I presume) almost all articles, is a big deal just to get the info extracted. It's not something a hobbyist would do for his own amusement — too much work!
Isn't it interesting that the Foundation decided to get in front of the SlimVirgin story by doing this? It rather increases my suspicion that the Real Story is with some of the admins (like Jayjg) that have screen names, and Jimbo would rather see the current anon IP story out there than the Real Story. The problem with SlimVirgin is that it pointed a big fat finger at the possibilities of infiltration that come with anonymous admins, and Jimbo doesn't need that.
However, the distinction between anons and anonymous admins is one that might get lost on the general public. I know I've had a hard time explaining to people like John Seigenthaler that an anonymous admin is even more anonymous than some vandal like Brian Chase. This latest CIA story is not going to help Wikipedia in the long run. It will help Jimbo spin the media in interviews, because he can dwell on the CIA and IP addresses instead of on anonymous admins. But it's probably still a net negative for Wikipedia.
The other thing is that the CIA is rather stupid to be using the same Class C block for their headquarters Internet access. They were using this same block more than five years ago! If you don't believe me, then
check out this page I wrote back in 2002. I had been watching the CIA surf around NameBase for several years even before I wrote that page. The IP addresses shown there are still used today, and the several new ones they are using are on the same Class C block!