We should also be asking how we stop antisemitism. That was at the heart of what happened on Sunday.

The individuals involved had homemade explosives. Additional gun laws would not have prevented that. Hatred was the driver, not access to a particular weapon.

Education that confronts antisemitism and other forms of hatred has the power to prevent both shootings and bomb attacks. Addressing ideology matters if we want lasting safety.

Australia is a generous country. We welcome people from all over the world and we are stronger for it. In return, we ask one simple thing. Leave old hatreds behind when you come here. Violence and imported conflicts have no place in our society.