Many of those individuals joining the jihad have little knowledge of the Koran. Yet there are other signs that indicate whether somebody might carry out an attack in the name of Allah. By Frederike HauptMore
The Hagia Sophia, with its massive dome and four minarets, is nearly 1,500 years old. Turkey's top court has now paved the way for the museum to be converted back into a mosque. By Klaus Dahmann
