And 70% of Pakistanis are inbred. Muhammed himself married cousins and endorsed it, therefore marrying first cousins is preferred amongst Muslims. It's suggested that mental psychosis and instability due to inbreeding can be the cause of terrorist mentalities.
According to Nicolai Sennels, a Danish psychologist who has done extensive research into Muslim inbreeding, close to half of all Muslims in the world are inbred:
70% of Pakistanis are inbred.
67% of Saudi Arabians are inbred.
64% of those living in Jordan and Kuwait are inbred.
63% of Sudanese are inbred.
60% of Iraqis are inbred.
54% of Muslims in the United Arab Emirates and Qatar are inbred.
25-30% of those in Turkey are inbred.
In England, at least 55% of Pakistani immigrants are married to their first cousins.
In Denmark the number of inbred Pakistani immigrants is around 40%.