The most specious reason for this mechanism is that if some evil worm or attack on the National infrastructure—a.k.a. "Cyberwar"—would be underway, the Internet would need to be shut down to prevent further damage to the country, which apparently can no longer function without the Net. This is kind of a weird tautology. The country can't function without the Net, so we need to secure the it, which includes having the ability to shut it down. But with the Net down, how can the country function?
You tell me.