Sounds like a movie waiting to happen. Apparently the network administrator for San Francisco's new wireless Wide-Area-Network has decided to lock out all of the other administrators. He refuses to give up the password, thereby making the entire network his own private domain.
It doesn't appear that users are locked out, so the city isn't shutting down or anything. But, it can't be accessed for admin purposes.
It's not taking over all the computers in the world ala Stormbreaker, but it's a start.
"This network is mine!!!"