CNN says that the FBI is going to be arresting somebody for writing the "Blaster" worm. Here's their story. The bit that I find most curious is this paragraph:

A witness reportedly saw the teen testing the infection and called authorities, the official said.

I'll just let you sit and think about what that must mean for the two people involved. Doesn't the informant necessarily have to be part of the accused's circle? I mean it's not as if you can watch somebody typing away in another cubicle and figure out what they're doing with any real accuracy. They'd pretty much have to be giving you a demonstration, wouldn't they?