(en-GB) Spencer Ackerman, « 41 men targeted but 1,147 people killed: US drone strikes – the facts on the ground », The Guardian, (ISSN0261-3077, lire en ligne, consulté le )
(en-GB) Spencer Ackerman, « 41 men targeted but 1,147 people killed: US drone strikes – the facts on the ground », The Guardian, (ISSN0261-3077, lire en ligne, consulté le )