TORONTO, ON – JUNE 26: A shattered glass-plate window cascades down as violent anti-G20 protesters, using Black Bloc tactics, smash and loot their way through downtown June 26, 2010 in Toronto, Canada. Violent protesters burned police cars, smashed shop fronts and confronted the force of approximately 20,000 police who were charged with keeping order during the first day of the G20 Summit. (Photo by Simon Hayter/Getty Images)
