Why nations that fail women fail 

And why foreign policy should pay more heed to half of humanity

There is growing evidence that Hillary Clinton was on to something when she said, a decade ago, that “The subjugation of women is…a threat to the common security of our world.”

That index of sexist customs, had it existed 20 years ago, would have warned them how hard nation-building would be in Afghanistan and Iraq. Today, it suggests that stability cannot be taken for granted in Saudi Arabia, Pakistan or even India.