A major riot has erupted in Britain's northern city of Leeds as vehicles were set on fire and police car overturned. It's not exactly clear what led to the commotion, but theories are abounding. Police say the riots sprang from clashes between social services agents and members of the Roma community in the city. But as Saeed Pourreza reports, it didn’t take long before xenophobes and Islamophobes started scapegoating one particular ethnic group.