Rachel helps put the current state of affairs in Afghanistan in some perspective. I'm one of those who has a hard time envisioning what success there will look like and yet she manages to make me feel some optimism.
About the only major issue Rachel doesn't delve into here is the one about Afghan corruption. So intractable a problem that in an attempt to deal with it the US has reduced aid to Afghanistan by $4 billion over concerns it's undermining their efforts. There's a report that corruption has doubled since 2007 - something that report author Lorenzo Delesgues says, "...reduces the legitimacy of the state, it gives more legitimacy to the Taliban."