Saudi-financed mosques did not local Islamic architectural traditions , but were built in the austere Wahhabi style , using marble ` international style ` design and green neon lighting . ( A Sarajevo mosque ( Gazi Husrev-beg ) whose restoration was funded and supervised by Saudis , was stripped of its ornate Ottoman tilework and painted wall decorations , to the disapproval of some local Muslims . ) One of the most popular Islamic preachers is Indian " televangelist " , Zakir Naik , a controversial figure who believes that then US President George W. Bush orchestrated the 9/11 attacks . Naik dresses in a suit rather than traditional garb and gives colloquial lectures speaking in English not Urdu . His Peace TV channel , reaches a reported 100 million viewers , According to Indian journalist Shoaib Daniyal , Naik 's " massive popularity amongst India ’s English-speaking Muslims " is a reflection of " how deep Salafism has spread its roots "
9/11 attacks
September 11 attacks
International propagation of Salafism and Wahhabism