Kenneth Roth, former head of Human Rights Watch on 30 years spent on the front lines of human rights advocacy and dealing with some of history's most notorious authoritarian regimes. The global history of the bagpipes that starts far from Scotland.  Fiona David, CEO of Fair Futures, on who should take responsibility for the slavery used in manufacturing many of the goods Australia imports? And on The Year That Made Me - Bret McKenzie, one half of New Zealand super group Flight of the Conchords.