I dropped my cell phone last week and broke the LCD screen. It still works, it's just kinda like flying blind. Fortunately, I pay for the optional insurance. I went to file my claim today and, of course, got a gigantic flyer filled with legalese. This bit made me laugh...

B. Exclusions 1. We will not pay for "loss" caused directly or indirectly by or resulting from... use of any weapon employing atomic fission or fusion.

So, in the case of a nuclear attack you're on your own. I somehow think I'd have bigger concerns.