397. The Pope, ketamine and the first trillionaire

The Week Unwrapped - with Olly Mann - A podcast by The Week Unwrapped - Fridays

What has the Pope been doing in Asia? Why is ketamine addiction on the rise? And who will win the race to a trillion dollars? Olly Mann and The Week delve behind the headlines and debate what really matters from the past seven days. With Arion McNicoll, Harriet Marsden and Irenie ForshawImage: Andrew Kutan / AFP / Getty Images