Which is why I said... riots aren't that organized compared to acts of terrorism. First day? They'll be most organized. After that? It devolves into looting as the people who started it lose control over the crowd. It is a crowd after all. Plus you have to take into account the police response, it's not the same thing. People shaking sticks angerly while lighting fires isn't the same thing as making bombs. The violence that's committed is very different from acts of terrorism.