Protestors attack a police vehicle during a demonstration, in Rome on October 15, 2011. Clashes broke out at an anti-capitalist protest in Rome attended by tens of thousands of people as part of a global day of protests inspired by the "Occupy Wall Street" and "Indignant" movements, with one group setting fire to a government office and riot police firing tear gas and water
- [FILIPPO MONTEFORTE/AFP/Getty Images]

A protestor wears a mask to protect from tear gas during a demonstration, in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

Protesters walks during a demonstration in Rome on October 15, 2011. Protesters launched worldwide street demonstrations on October 15 against corporate greed and biting cutbacks in a rolling action targeting 951 cities in 82 countries.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

Protesters march past the Colisseum during a demonstration, in dowtown Rome on October 15, 2011.
- [MARIO LAPORTA/AFP/Getty Images]

A protester wears a mask during a demonstration in Rome on October 15, 2011. Protesters set fire to a government building, torched cars and smashed bank windows in Rome in the worst violence of worldwide demonstrations against corporate greed and government cutbacks.
- [MARIO LAPORTA/AFP/Getty Images]

Protesters are pictured during a demonstration in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

Protesters attack a Police van during a demonstration in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

A protester throws back a teargas to Policemen during a demonstration in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

Protestors attack a police vehicle during a demonstration, in dowtown Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

A protester uses an extinguisher to break a window during a demonstration in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]

Cars burn during a demonstration, in dowtown Rome on October 15, 2011.
- [MARIO LAPORTA/AFP/Getty Images]

Masked demonstrators launch projectiles to anti-riot police squad during a demonstration, in Rome on October 15, 2011.
- [ALBERTO PIZZOLI/AFP/Getty Images]

A demonstrator holds a poster reading "throw a shoe at Silvio" during a demonstration, in Rome on October 15, 2011.
- [ALBERTO PIZZOLI/AFP/Getty Images]

Anti-riot policemen walk by a Police van in fire during a demonstration in Rome on October 15, 2011.
- [MARIO LAPORTA/AFP/Getty Images]

Protesters are pictured in tear gas during a demonstration in Rome on October 15, 2011.
- [FILIPPO MONTEFORTE/AFP/Getty Images]