John Simpson, in discussion with the BBC’s unparalleled range of experts across the world, analyses the impact of the election of a right-wing president in Poland on the country’s government, examines the long-term effects of the ongoing civil war in Sudan, and looks at the ongoing attempts by the Chinese authorities to suppress the memory of the Tiananmen Square massacre.

Producer: Kate Cornell Executive Producer: Benedick Watt Commissioning Editor: Vara Szajkowski