"When I went to Afghanistan in 2003, I walked into a war zone. Entire neighborhoods had been demolished. There were an overwhelming number of widows and orphans and people who had been physically and emotionally damaged; every 10-year-old kid on the street knew how to dismantle a Kalashnikov in under a minute. I would flip through math textbooks intended for third grade, fourth grade, and they would include word problems such as, "If you have 100 grenades and 20 mujahideen, how many grenades per mujahideen do you get?" War has infiltrated every facet of life."