Is this the cruellest experiment ever conducted? Identical twins and triplets, separated at birth so a psychiatrist could study what happened as they grew up alone; Plus, the man who says he can fix Australia's crumbling building industry.

A major investigation by Nick McKenzie will set alarm bells ringing through the corridors of power in Canberra; & Tara Brown's exclusive interview with the indefatigable Dr Anthony Fauci, Donald Trump's straight-talking pandemic expert.