When the streets begin to speak

Behind the story: Two days after SignsWatch examined the disruption of food and fuel distribution in southern Italy, the consequences are still spreading. Pasta manufacturers have interrupted production, and wholesale markets are experiencing shortages.

Meanwhile, Italy is deploying 500 additional soldiers to Milan following serious violence during weekend demonstrations.

Across Europe, people are protesting about housing, wages, public services and the cost of living. Similar demonstrations are occurring further afield, although their causes vary.

Is this an unusual convergence of unrest? Are the movements connected? And how should governments balance public safety with the right to protest?

Today's episode examines the evidence, the differences between these movements, and the economic pressures that may help explain their simultaneous appearance.

Read more at SignsWatch