I don't trust the DHS when it comes to anything having to do with computers (not just because they chose to use Windows everywhere either), nor do I trust any software to be %100 secure or bug-free. I wouldn't be surprised if some worm/etc. does serious damage, including damage it was never meant to do (remember the first worm back in the 1980s which brought down large portions of the internet).
Has anybody in this thread brought up the issue of whether or not this is the beginnings of S-K-Y-N-E-T becoming active? Arnold is running for governor, but perhaps he can pop over and do something about it.
Said forensic cyber specialists would need a couple of weeks to determine why it happened.