Terrorists likely to increase use of social media and other hard-to-track Internet channels, experts say. Social media, like Facebook and Twitter, are logical places where terrorists would go to write coded messages to each other. Online gaming communities accessible through a PC or video console, such as the Xbox or PlayStation, are other virtual worlds that terrorists may turn to more often to communicate. Mobile applications developed for advanced terrorist groups could become more attractive to secretive communications. The less sophisticated terrorists are likely to go dark for a period of time, expert says.”]