Al Qaeda's anti-drone countermeasures [pdf](hosted.ap.org)
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Al Qaeda's anti-drone countermeasures [pdf]
http://hosted.ap.org/specials/interactives/_international/_pdfs/al-qaida-papers-drones.pdf
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Referring article here: http://www.telegraph.co.uk/news/worldnews/al-qaeda/9886637/R...