Peter Dutton lobbed the first grenade – and then Scott Morrison charged in. They've both accused Labor of being China's pick – and of wanting to appease Beijing – of being soft. So extreme were some of the accusations – fellow Ministers wouldn't repeat them. Past and present national security chiefs even took the rare step of speaking out. Playing politics is unhelpful. Inventing differences – they warned - will only help China. That hasn't stopped the Prime Minister.