Take a look at this short film clip of what is happening in Greece.
http://www.youtube.com/watch?feature...&v=bVVzr5SxWkY
These are people rioting over forced government austerity measures. In other words people in government jobs are getting laid off and government checks are not being sent. Their government is broke and there is nothing they can do for them ( in terms of a check from the government).
What do many of the Greek people do in this situation?
They riot.
It's sad but if similar austerity measures happen here, the same thing is going to happen, but it might be more violent.