Riots erupted over the weekend in Greece after police shot a teenage boy to death after an altercation. You can read all about the incident and see some remarkable photos all over the web, especially here. Apparently the initial mob formed soon after the shooting as text-messaging, email, and instant messaging were used to spread the word quickly.
Why burn and loot shops to express your frustration with injustice? Isn’t burning someone’s shop or car an act of injustice? I get fighting the police (sort of), but I don’t get destroying your own city and robbing your neighbors.
ryanguard.net 
You’ve voiced my thoughts after seeing this on the news. The same stuff happens in France as well, totally don’t understand…
I don’t know if you watch Jon Stewart at all but he has a funny bit about protesting during his stand up comedy routine. If you can get past the language, it is funny.
Jon goes because he is mad at the police. The protesters are chanting against the police and then things start getting out of hand and the protesters start fighting, tearing up the area and overturning cars. Eventually Jon’s chant turns from “…. the police!” to “Where the …. are the police??”
I haven’t seen that skit but Jon Stewart’s a funny dude.