When I attended a cyber security conference in New York I was told that even the defense systems are connected to the Internet and can be operated remotely. When it is simply not feasible to build a separate network, even for defense uses I wouldn't be surprised in power grid piggybacking on the Internet. Think of this like the highways across the country, you cannot expect defense, power to have their own highways, do you?

I use Google maps a lot for driving directions and I find it so unreliable. I had quite a few rude surprises when I reach the place and find that the expected business is not to be found anywhere around. And it is notoriously bad with spellings, missing a space in the street name could take me to an entirely different place. I would definitely recommend a proper GPS device over Google maps

Are you listening?

My company is more careful about not violating OSS licenses than making sure they don't pirate any shareware