One Nation wins Farrer by-election

One Nation won the seat of Farrer from the Coalition, which had held the seat for 77 years. Meanwhile in the UK local elections indicate a decline for support of major parties. In this edition for The Conversation Hour we explore what underpins a fracturing political landscape.Also in this edition, the mental health of vets, the release of UFO files in the US, plus we ask you how you feel about going grey.