I'm not entirely anti-Microsoft (admittedly, I am primarily a Knoppix/Debian Linux user), but this German article makes an interesting point. There is at least a possibility that the MS Blaster worm may have indirectly caused the Lake Erie Loop blackout. Using Babelfish http://Babelfish.altavista.com and picking through the Germlish got me enough of a translation that I must say that it's food for thought:
Here's a link to the BugTraq message thread concerning RPC/DCOM controls as used by the utilities:
...and this AP story may well be the smoking gun -- was the alarm knocked out by the worm, or did the alarm being out allow the worm to bring the system down?