Do you have questions about the Muslim Rohingya in Myanmar?
Then log onto reddit.com from 2100GMT on Sunday to join the chat with film maker Phil Rees.
Phil Rees' film 'The Hidden Genocide' is a story of a people fleeing the land where they were born, of a people deprived of citizenship in their homeland. It is the story of the Rohingya of western Myanmar, whose very existence as a people is denied.
"When you see measures preventing births, trying to deny the identity of the people, hoping to see that they really are eventually, that they no longer exist; denying their history, denying the legitimacy of their right to live where they live, these are all warning signs that mean it's not frivolous to envisage the use of the term genocide," said Professor William Schabas, the former president of the International Association of Genocide Scholars.
Phil Rees is a Welsh writer, reporter and documentary maker who has specialised in international relations.
He has covered Asia, the Middle East, Africa and the Americas during a 30-year career in journalism. He reported from Myanmar in 1991 and lived in southeast Asia for seven years.
He has won a dozen international awards, including two from Britain's Royal Television Society. For nine years he was a BBC foreign correspondent and senior producer on the BBC's flagship global affairs programme.