Back in the fall of 2008, Michael Bester and a business partner, both Army veterans doing contract work in Afghanistan, hit on the equivalent of the counterinsurgency’s trifecta: a way to improve the lives of ordinary Afghans, eliminate the illegal opium trade, and take the Taliban’s money. “We had been in villages where children were dying because they didn’t have proper medicine, because they didn’t have refrigerators,” Bester told me. Light up the villages, and perhaps you could empower Afghans to resist the Taliban. And the fuel?