I don't worry about N.Korea or other WW3 scenarios because if things really get that bad then our BTC holdings will be the least of our worries.

I would be more worried about Govts. (especially bankrupt Western govts.) running scare-stories about BTC. Linking BTC to drugs etc. hasn't done too much damage so far but I think linking it to terrorism could have more of an impact.

Most people are very poorly-informed and wouldn't have the capacity to realise that ISIS are already using all types of fiat without people boycotting those currencies.

But the petro-dollar scam will fall apart one day in the near future and at that point I would hope that will push more people into BTC to save what little purchasing power they still have.