To summarize all this: the US does not interfere in the Muslim world and maintain an endless war on terror because of the terrorist threat. It has a terrorist threat because of its interference in the Muslim world and its endless war on terror.
MANDATORY READ: http://guardian.co.uk/commentisfree/2012/oct/24/obama-terrorism-kill-list?cat=commentisfree&type=article
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The Committee to Nuke Elysium 