Protesters gather for a march organised by Grandmothers Against Removals (GMAR) to mark Aboriginal and Torres Strait Islander Children's Day, Sydney, Friday, August 4, 2017. The march is a collaboration with Dylan Voller, who came to national attention one year ago when Four Corners detailed his incarceration and torture by the state. (AAP Image/Joel Carrett); Right (from Top to Bottom): David Unaipon, Cathy Freeman, Senator Neville Bonner. Source: AAP / JOEL CARRETT/AAPIMAGE