Political historian Professor Jenny Hocking has won a decade-long fight to access hundreds of letters between the Crown and former governor-general, Sir John Kerr, before the dismissal of the Whitlam government.
This morning, the letters were revealed to the Australian public after the High court ruled they were public records. 
In this episode, senior culture journalist Nathanael Cooper is joined by senior economics correspondent Shane Wright to discuss the revelations in the letters and why it's taken so long for Australians to access them.