This week Tim Harford asks how the figure of 1.2 billion Catholics world-wide is calculated. He also tests the claims of the controversial video, 'Muslim Demographics' shown at the Vatican by the Ghanaian Papal candidate Cardinal Peter Turkson.
📆 2013-02-18 13:00 / ⌛ 00:09:30
📆 2013-02-11 13:00 / ⌛ 00:09:30
📆 2013-02-04 13:00 / ⌛ 00:09:31
📆 2013-01-28 13:00 / ⌛ 00:09:30
📆 2013-01-21 13:30 / ⌛ 00:09:29