This week: Christopher Caldwell writes The Spectator's cover piece on Italy’s new wave of migrants. This is in light of the situation in Lampedusa which he argues could upend European politics. Chris joins the podcast alongside Amy Kazmin, Rome correspondent at the Financial Times, to debate Europe’s escalating migrant crisis. (01:23) Also this week: In his column, Matthew Parris writes about Australia’s Voice vote, a yes/no referendum being held on whether to establish a new body which will advise parliament on matters relating to Aboriginal and Torres Strait Islander peoples. It is a source of real controversy in the country, and Alexander Downer – former Australian minister for foreign affairs and leader of the Liberal Party between 1994 and 1995 – joins Matthew to discuss. (16:07) And finally: why do some Churches rise and others fall?  In the magazine, journalist Dan Hitchens writes a tale of two churches by comparing the fastest growing – Elim Pentecostal church – and the fastest shrinking church in the UK – United Reformed church. He is joined by Revd Marcus Walker, Rector of the Priory Church of St Bartholomew the Great, London. (31:29) Hosted by William Moore.  Produced by Oscar Edmondson.