"It’s very difficult to disentangle yourself from these radical groups," says Justin Forsyth, policy director at Oxfam. "And the violence is counter-productive and takes attention away from the issues." Mr Forsyth's comments reflect a general frustration among many non-governmental organisations (NGOs) about the havoc being wreaked by extremist groups when it comes to globalisation protests and the fact that they are increasingly eager to distance themselves from the radical groups behind much of the violence.