For me it depends on how close I keep my liquid refreshments to my system. Coffee is some destructive stuff and though I've never spilled any on an HDD, several keyboards have been sacrificed to the ComputerGods over the years as a result of my indiscretions in caution on that count.
Yah, that could be bad. My solution has been to hire the local gravestone provider to carve all of my data and programming into polished granite slabs. The transcription process should only take a few more years, but the big problem has been where to store it all; my downstairs neighbor will whine on about his ceiling sagging under the weight (not to mention the clutter in my own living space) so I'm thinking of renting some pyramid space from Egypt once they get all their government nonsense squared away.
I think you're being far too optimistic in terms of Iranian missile tech. Even with what China may or may not be selling chances are any decent Major League Baseball pitcher can toss a nuke higher than an Iranian missile platform could.