Cross-examination has spilled into public debate as experts investigating radicalisation trace the drivers of extremism.Witnesses including academics and police are set to appear at the Royal Commission on Antisemitism and Social Cohesion on Friday as part of its latest hearing block.Experts have suggested online radical movements, high rates of misogyny amongst youth and even economic difficulties have fed into Australia's extremism risk.Academic Sara Meger told the commission on Thursday her research linked misogyny with predicting violent extremism.She recommended the government consider earlier respectful relationship education to combat high rates of gendered attitudes among young children.Counter-terrorism expert Julian Droogan on Wednesday...