MotherJones: Aftermath: Long-term thinking: The Iraq Effect: War has increased Terrorism Sevenfold Worldwide

http://www.motherjones.com/news/featurex/2007/03/aftermath.html
"Has the war in Iraq increased jihadist terrorism? The Bush administration has offered two responses: First, the moths-to-aflame argument, which says that Iraq draws terrorists who would otherwise “be plotting and killing Americans across the world and within our own borders,” as President Bush put it in 2005. Second, the hard-to-say position: “Are more terrorists being created in the world?” then-Secretary of Defense Donald Rumsfeld asked at a press conference in September 2006. “We don’t know. The world doesn’t know. There are not good metrics to determine how many people are being trained in a radical madrasa school in some country.”"