Large anti 2010 G8, G20 protests in downtown Toronto, Ontario

A mix of bystanders and protestors argue with riot police at the Queen's Park Legislative Buildings as they are pushed back with little warning as police aggressively enlarge their perimeter around a splinter group from a large anti G8, G20 afternoon protest march in Downtown Toronto, Ontario, June 26, 2010. UPI/Heinz Ruckemann