Rettssaken mot to tyske og to tyrkiske unge menn for terrorplaner, vekker uro og frykt i Tyskland. Det var ingenting i de to tyske mennenes bakgrunn som tilsa at de skulle konvertere og bli fanatiske muslimer. Tyrkerne er født og oppvokst på tysk jord.
Det er to millioner tyrkere i Tyskland. En radikalisering blant dem er sikkerhetsmyndighetenes mareritt.
Politiet regner med at 120-140 tyske militante har fått trening i leirer langs den afghansk-pakistanske grensen. Man tror rundt halvparten har vendt tilbake. 70 mennesker kan utrette ganske mye, og er mange å følge med på.
På det meste var 600 politifolk delaktige i overvåkingen av de fire som står tiltalt i Düsseldorf. Det sier noe om hvor mannskapskrevende slike saker er.
«The world will burn!» boasted an intercepted e-mail sent between the accused, who are alleged to have wanted to wage an Islamic holy war in the heart of Europe.
Three of the men — Fritz Gelowicz, 29, Daniel Schneider, 23 and the Turkish national Adem Yilmaz, 30 — are accused of attending a training camp on the Afghan-Pakistani frontier run by an Uzbek-based terror organisation known as the Islamic Jihad Union.
Intelligence services say that it has links with al-Qaeda. Using detonators — supplied, the state prosecutor claims, by Attila Selek, 24, a German citizen of Turkish origin — the gang prepared bombs with the explosive force of 410kg (904lb) of TNT, to be set off in and around the US Ramstein air base and other targets. The bombers in London on July 7, 2005, had 4kg of explosive.
«Converts tend to be more radical and fanatical than those who have been Muslims since they were in the cradle,» says Hans Joachim Giessmann, a terrorism expert at the Hamburg Institute for Peace Research.
Hartwig Möller, head of counter- terrorism for the region of North Rhine-Westphalia, calculates that between 120 and 140 militants from Germany have received combat training in camps on the Afghan-Pakistani border and that about half of them are back in Germany.
The second source of anxiety is that two Turks were involved. Mr Selek, who had kept his Turkish citizenship, grew up in Ulm and worked as a spray painter. Mr Yilmaz worked as a department store detective. Apart from tensions between Kurds and Turks, the Turkish minority in Germany, more than two million, has been largely apolitical. The idea that younger Turks living in Germany could turn into political radicals is a nightmare for the security services.