First of all, Sick Puppy's postings were not a waste of time, nor off-topic. He tended to throw in some rather odd stuff, but so does life. And he seems to know what he's talking about when it comes to security and networking. I know that you can set up backup routes, but I am It's always fun to see the media distort things. This bit about nuclear war has been a favorite for a couple of years now.
Conventional scenarios are all that is reasonable to plan for.
Nuclear ones, per se, weren't part of the discussions. As folks might have suspected, not much survives except roaches and they don't carry large enough packets fast enough. It was developed for load-leveling, not robustness. Opinions expressed by this message muncher is not necessarily my boss's. This has to deal with hosts having more than one IP address.