http://www.dw-world.de/dw/article/0,2144,1846008,00.html
"German intelligence officials warn that European Islamic extremists returning home from fighting with insurgents in Iraq are a danger. Last year's London bombings, they say, are proof of the homegrown terrorist threat. In an interview with German public broadcaster ZDF, Heinz Fromm, the president of Germany's domestic intelligence service said that the highly unstable situation in Iraq poses a threat to European countries, including Germany.
Fromm warned that the hundreds of European Muslims who have gone to Iraq to support Iraqi insurgents, and who then return to Europe, are a great concern to European security agencies. "