I think many people consider only a scenario when Bitcoin goes off globally. This is not necessary for a total collapse of the Bitcoin price <I say price, because taking Bitcoin down globally would be pushing it}
We saw during the Arab Spring riots in 2011, that the government at the time, blocked access to the internet, because people used online services to organize these riots.
If countries want to do this, they only need to block access to inter continental cables and Satellite access. It's not impossible to do, but they could disrupt Bitcoin <And all other internet services> if they wanted too. If they do this in any country in the world, the ripple affect would be a massive exodus of people from Crypto currencies. < Panic would spread, even if it's unrealistic that it would happen everywhere >
To take down Bitcoin, you have to take down all other internet services. That would create chaos. ^hmm^
