One year ago this week, when the Taliban retook control of Afghanistan, they promised to institute a modern form of Islamic government that honored women’s rights. That promise evaporated with a sudden decision to prohibit girls from going to high school, prompting questions about which part of the Taliban is really running the country. Guest: Matthieu Aikins, a writer based in Afghanistan for The New York Times and the author of “The Naked Don’t Fear the Water: An Underground Journey with Afghan Refugees.”