VR's ability to foster greater empathy than other media will make it a powerful propaganda tool. I'm surprised we haven't been hearing more about this. It's a flip side of the same coin they're touting.
If you think youtube is a powerful recruiting tool for political movements & extremist groups, you ain't seen nothin', yet.
Just consider how many protests and movements, around the world, have been fueled by social media, in recent years. Now, think about what effect it would have to experience attacks, offenses, and injustices as if you were there. Not only that, but VR video can & will certainly be edited to serve the interests of someone, or maybe just trolls and anarchists.
I'm starting to think that social media might just fan the flames of the next world war. And, as if it weren't already dangerous enough, VR could be a potent accelerant.