>>>Modern communications can be really delicate to events like earthquakes, power issues, wars etc. In big events, cell phones/computers etc, are useless for most.
Saw a tweet that Verizon has no infrastructure issues - just butt loads of people trying to use the network, at the same time.
I've tried to explain to my wife time and time again that our Communications network will crash like a Led Zeppelin if a real catastrophic event occurs and it will have almost nothing to do with infrastructure. 300 Million plus people all trying to contact someone or find out news at the same time will crush the system faster than any Earthquake or Comet Strike!