We may despise the deregulatory excess of the Keating era. We can never rue the excess of the Keating mouth. “I want to do you slowly” or “the honourable gentleman's hair, like his intellect, will recede into darkness” are the sorts of things he said to politicians. This talkback in 1992 -- with brute sincerity, Keating urges voters to acknowledge their racist flaws -- is the sort of thing he regularly did. He was, and remains, comically frank. You could even call him an exception. But he was an exception made possible by an age -- an age whose end was recorded and broadcast last night on Four Corners.

You may have taken the good decision not to watch as Sarah Ferguson put public political candour to its final death. You may have avoided Q&A, whose first minutes were given over to Ferguson’s spouse to talk of the talk just aired. It is unlikely, however, that you were not made aware that former US presidential nominee Hillary Clinton had consented to a long-form talk with the ABC. Promotion by the national broadcaster was intense and so various, it got to zero-level with this “insiders” guide on just how one prepares for an interview with Hillary Clinton.