The Conversation: What Can Be Done to Control Cyber Bullying?

In today's Conversation, ABC's David Muir chats with freelance journalist Mattathias Schwartz about the phenomenon of "trolling," a type of online bullying where people bother others online just for the sake of getting under their skin.

The subject of cyber bullying has sparked much conversation, since news broke of 15-year old Phoebe Prince allegedly committing suicide on Jan. 14th after being bullied by her peers online. How does one regulate the hundreds of millions of users online? How does one detect an online "troll"? Why do people engage in such behavior? All this and more in today's Conversation.