German author visits Islamic State
bbc.co.uk
bbc.co.uk
Here we have people with a common shared strong political/religious viewpoint assembling from around the world in one spot and declaring a new state. That's very unusual.
We see miniature versions of this in the states with "flash mobs", but the stronger the feelings involved, the more disruptive something like this can be.
I wonder if we're not going to see a lot more of this over the next few decades.