WILLIAM DOBSON:

Well, essentially, they are — they are vital at this point, because you have to — the first thing you have to understand about many of these places is that there is no way for these groups, these activists or organizers to communicate through the national media.

The national media is completely controlled by the state. So when you think about radio, TV, newspapers, and you have — many times, it's impossible for them to get their message across that way. So, they are going to rely on social media almost entirely. And these more sensitive, secure communications are vital for them to be able to organize and rally and plan.

You know, I was talking to one activist just the other day who said, you know, we never pick up the telephone anymore. He said, it wouldn't even occur to us to pick up the telephone, because we know those lines are tapped or there is too much of a danger that they would be. So, we — our first resort is to turn to these types of tools.

And they also change the tools they're using all the time. They don't want to be predictable.