I'll have more after the video. Let's go to the videotape. http://www.youtube.com/watch?v=cf0jlzVCyOI
Here's an interesting blog post on Symantec's blog about Stuxnet. Note this:
Since our discovery that Stuxnet actually modifies code on PLCs in a potential act of sabotage, we have been unable to determine what the exact purpose of Stuxnet is and what its target was.Hmmm.
However, we can now confirm that Stuxnet requires the industrial control system to have frequency converter drives from at least one of two specific vendors, one headquartered in Finland and the other in Tehran, Iran. This is in addition to the previous requirements we discussed of a S7-300 CPU and a CP-342-5 Profibus communications module.