Freed activist calls on Hong Kong leader to resign

We hear from Hong Kong's most prominent student activist, Joshua Wong, who has called for the resignation of leader Carrie Lam, after walking free from prison.
Also on the programme: Allegations that China is continuing with the practice of harvesting organs from political prisoners; and efforts to save indigenous languages in Australia by teaching them to children.

(Photo: Activist Joshua Wong speaks to the media after being released from prison on June 17, 2019 in Hong Kong. Credit: Carl Court/Getty Images)