"Half the Sky" authors, Nicholas Kristof and Sheryl Wudunn are interviewed on Al Jazeera English, regarding their reporting on the relationship between a country's stability and the status of its women. Countries which value females, ensure that they survive childhood and are fully educated and the result is that they are less likely to experience a youth bulge and the extremism that results. Such countries also benefit immensely from women taking up economic and cultural roles, than countries which don't value females.