The Useless Nations says the next world war might be in cyberspace. They could be right on this one. If one country could control or shutdown another country's cyber-infrastructure, the hacked country couldn't fight conventionally. Game over without a shot fired. Think about it...no power...financial markets down...telecommunications down...air and train travel down...no fuel..., and the list goes on and on.

Also, what happens if a Root Server is compromised?