Each season, Secrets We Keep investigates a different Australian secret.    By Any Means (Season 6): An investigation into the modern fertility landscape, confronting complex questions about consent, identity and human rights. Available only on the LiSTNR app from April 14.  Should I Spit? (Season 5): The origin story of the multibillion dollar consumer DNA industry. From police hoping to solve cold murder cases, to one of the most powerful churches in the world, everyone seems to want a piece of what makes you, you.  Pray Harder (Season 4): investigative journalist Richard Baker uncovers the unbelievable and compelling true story of Australia’s oldest and most hard line Pentecostal Church, the Geelong Revival Centre.  Baghdad Nights (Season 3): Richard Baker takes you inside Australia's biggest corruption scandal, finding out how Australia funded a dictator in the lead up to the Iraq War.  Nest of Traitors (Season 2): Joey Watson is pulled into the world of espionage, attempting to track down an Australian spy who turned to work for the enemy during the Cold War.  Shame Lies & Family (Season 1): A mystery photo of Amelia Oberhardt’s mum exposes the practice of shotgun marriages, forced adoption, and quiet abortions carried out in Australia until the 1980s.