 In documents captured from Osama bin Laden's compound on Abbottabad, the Al-Qaeda leader talked extensively about American drones (referred to as "spy planes"), citing them as the chief threat to Al-Qaeda and its allies.He stated that “over the last two years, the problem of the spying war and spying aircrafts [sic] benefited the enemy greatly and led to the killing of many jihadi cadres, leaders, and others.This is something that is concerning us and exhausting us."