On Thursday, September 6, the German authorities were still hunting some ten suspects, described as a mixture of Germans, Turks, and others. This Turkish connection is troublesome in light of the recent election of the Sunni-centric, religious AK party in Turkey. German Turkish and Kurdish Muslims have described infiltration of their communities by "soft" fundamentalists ever since the religious parties emerged as a serious political force in Turkey more than 20 years ago. Similarly, moderate Muslims in Turkey's neighboring and related cultural zones, the Balkans and Central Asia, now warn that Turkish, rather than Arab, Islamists are beginning to throw money around and establish networks in their regions.Source
... Al Qaeda is losing the war in Iraq. Its fanatical dedication to Wahhabi-style takfir--or expulsion from the religion and slaying of Muslims with whom it disagrees--has alienated many Sunnis who formerly fought against the U.S.-led Coalition and the Iraqi government (see Frederick W. Kagan's "Al Qaeda in Iraq"). As Iraqi Sunnis change sides in our favor, al Qaeda is bent on transferring the jihadist battlefield to Europe, which is the nearest and most vulnerable theater of opportunity.
The European Union has not formulated an effective common anti-terror strategy. European federal authority is fragmented and subject to local political vagaries--as seen by the hurried withdrawal of the Spanish from Iraq after the Madrid metro horror. Differences like that between, in the past, typically secular Turkish and Kurdish Muslims in Germany, diverse groups of Arab and African Muslims in France, and radical Muslims from Pakistan and India in the United Kingdom have also obstructed a common EU response.
...There are not enough Uzbeks or even Pakistanis in Germany to support a "homegrown" radical Islamist network among them, and for the Germans of Turkish origin, as indicated, the phenomenon is new and imported. In Germany, at least, terrorism is clearly not "homegrown"--it is an exotic import, supported with foreign money.
The Turkish experience is trying to tell us that Islamism--even in its moderate forms--is still a threat to non-muslim populations. Admitting Turkey to the EU will simply make it much easier for the "moderate Islamists" of Turkey to export an intrinsically violent culture to Europe.
Islam was born out of violence, spread by violence, and attempts to dominate as much of the world as it can through violence. While Islam may be a religion of peace from an Islamist perspective, from a European perspective it is an existential poison.