Photo Gallery Germany's Radicalized Muslims
Security has also been increased dramatically at the visitor center of Germany's parliament as a result. In a phone call to German officials, Emrah E. said in 2010 that al-Qaida was planning to attack the Reichstag in Berlin (pictured here).
There are forces fighting against this development. Imam Mustafa Cimsit, seen here at a prison in Frankfurt, tries to counter the kind of radical thinking that can grip Muslim prisoners with few prospects once they are released.
Another is extremism expert Claudia Dantschke of Berlin, who helps families prevent radicalization.
But there are also forces pushing to spread Islamist extremism in Germany, like Bernhard Falk. He doesn't view Emrah E. as a terrorist, but rather as a "political prisoner of the Federal Republic of Germany."
Imam Mustafa Cimsit sits during Friday prayers in a German jail. Cimsit has often prayed together with Emrah E. at his prison. He has told him it was cowardly to travel to a faraway place and fight a war that has nothing to do with them.