Violent clashes overshadow start of Milan Expo

Keep up-to-date with the latest news, subscribe here: http://bit.ly/AFP-subscribe Police fire tear gas at stone-throwing, masked protesters who have smashed windows and torched several cars and bins during a "No Expo" march. Duration: 01:14 Follow AFP English on Facebook:   / afpnewsenglish   Latest news on AFP English Twitter:   / afp   Share your top stories on Google+ http://bit.ly/AFP-Gplus