If it has anything to do with that worm currently going around, it probably is because some critical machine somewhere was infected and keeps getting the RPC/SVC errors and is constantly rebooting itself. Even with the software packages (firewalls perhaps is what they were talking about), if your OS itself is infected and keeps crapping out, your not safe.
I would hope and pray that the power system/grid computers are on an ultra-secure system and that none of the critical computers have any outside network/internet access (like you see with many banks and the military/government).
Now if some idiot brings in an infected laptop from the outside and plugs right into the network, thereby circumventing most security measures and infects other computers on the net, all of that time/money spent on security is for nothing.