Schneier on Stuxnet

A number of friends and I have discussed Stuxnet of late, and Schneier has just posted the best analysis of it I have seen to date:

http://www.schneier.com/blog/archives/2010/10/stuxnet.html

What he leaves out is my favorite conspiracy theory (favorite, not most likely), that it was created so Iranian defense would find it and not the real threat to its reactor, though he does mention that it may have been meant to be found.