The very smart Bruce Hoffman provides some definitions:
Terrorism is "violence designed to register some protest and/or to change the outcome of some political issue," says Professor Hoffman. "Certainly this type of leaderless terrorism is not an organic phenomenon. Terrorist organizations are actively encouraging people - through the Internet and other means - to engage in violence of their own."
We want to hear what you think about this article. Submit a letter to the editor or write to email@example.com.