Afghanistan: America's Failed War of Attrition (Scahill)
It is not simply a matter of ideology versus technology. The Taliban is not one unified body. The Afghan insurgency is fueled by fighters with a wide variety of motivations. Some are dedicated jihadists, but others are fighting to defend their land or are seeking revenge for the killing of family members by NATO or Afghan forces. While Al Qaeda has been almost entirely expelled from Afghanistan, the insurgency still counts a small number of non-Afghans among its ranks. Bolstering the Taliban's recruitment efforts is the perception in Afghanistan that the Taliban pays better than NATO or the Afghan army or police.
The hard reality US officials don't want to discuss is this: the cultural and religious values of much of the Pashtun population--which comprises 25–40 percent of the country--more closely align with those of the Taliban than they do with Afghan government or US/NATO forces.