University of Canberra Vice-Chancellor Professor Deep Saini and Michelle Grattan discuss the acts of civil disobedience by climate activist group Extinction Rebellion - including the harsh bail conditions faced by protesters, and whether the tactics they use will be helpful to their cause.

They also talk about America’s withdrawal from Syria and the ensuing Turkish military offensive, and consider what Australia’s responsibility is in the conflict.

Michelle Grattan does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.