San Francisco suffered a serious attack on its telephone infrastructure when the fiber optic cables servicing 52,214 customers were cut. It took until 4:30 p.m. the next day for service to be fully restored.
No terrorism links are suspected. But imagine that sabotage like this could be a part of an overall plan coordinated with other attacks, like bombings or crime. It's a scary thought.
Hopefully this will be a heads-up to secure the fiber optic cables more carefully in the future.