According to the Wall Street Journal, as well as a number of other sources, techno-spies have seriously invaded the U.S.'s electrical system. Not only that, but they've put in 'sleeper' software that, if activated, could shut things down in a hurry.
No one would have found this if electrical companies had not given the government permission to do an audit on their systems.
It's thought that these hackers were from China and Russia primarily, though those countries are denying any responsibility.
Read more here:
Are you as creeped out about this as I am?
I'm also surprised that the articles seem to have been pushed aside very quickly by the media. Better not to think about it, perhaps they're reasoning. Can't do anything about it anyways... who knows, but I saw the article this morning -- and really had to search for it tonight.