On the podcast: In The Spectator's cover piece Jonathan Spyer writes that as America's role in international security diminishes history is moving Iran’s way, with political Islam now commanding much of the Middle East. He is joined by Ravi Agrawal, editor in chief of Foreign Policy and host of the FP Live podcast, to discuss whether America is still the world's policeman.  Also this week: In the magazine this week, The Spectator’s literary editor Sam Leith speaks to Jacques Testard, publisher at Fitzcarraldo Editions, the indie publishing house which has just won its fourth nobel prize in under ten years. They have kindly allowed us to hear a section of their conversation in which they discuss the joy of translations, how a literary publishing house should exist as a work of art in and of itself and why winning prizes isn’t everything.  And finally: In his arts lead, journalist Dan Hitchens reviews Georgian Illuminations, an exhibition at Sir John Soane's Museum on the golden age of public spectacle. He joins the podcast alongside Louise Stewart, co-curator of the exhibition, to uncover how the Georgian's invented nightlife. Hosted by Lara Prendergast and William Moore.  Produced by Oscar Edmondson.