Heh, CNN are kinda over-reacting... maybe has something to do with the fact that they got hit by this worm themselves despite a patch having been released a week ago.
"Microsoft in 'emergency response' as worm reported on three continents"... a bit sensationalist considering they patched the bug a week ago.
It will be interesting to see how many home users are unpatched and are helping to spread this worm and the previous variants (I've counted 8 or 9 variants so far since last week's announcement). Hopefully home users will have auto-patching enabled, but I guess we'll soon find out. Interestingly, it appears that the worm connects to IRC server 72.20.27.115 and joins #tbp, so it should be possible to count the number of infected machines waiting for instructions.