I see people from Iraq and Syria on the internet, it's not like it's shut down. When terrorists come to your down asking for a tax, just show them that you have nothing. All you have to do is hide your private key, or use an online wallet like Coinbase. Using something like PayPal or Western Union can be risky, as terrorists are aware of it, and those services don't like doing business with those citizens anyways for obvious reasons.
We need to focus on educating people in third world countries more, that is where bitcoin can do the most good.
I can only assume if you have a terrorist organization knocking on your door demanding money is a bit overwhelming. You'd likely have alot on you mind and understanding the ins and outs of Bitcoin may not be the top on your to do list. I'd think making sure you and your family doesn't get killed is top of the list of things to do.