Why we might be getting the birthrate panic wrong again

Not long ago, the predominant worry when it came to humanity's headcount was overpopulation. But now, the panic is the opposite, falling birthrates in many Western countries. But maybe both of those ways of thinking have it slightly wrong.

In this episode, Katty Kay speaks to demographer Jennifer Sciubba about how the most important thing might not be whether a country's population is going up or down but how governments and societies adapt when their population begins to change.