Minister warns of inbred Muslims
Incest has been the norm in Moslem societies, but they prevented it from harming the gene pool by "harvesting the steppes" -- grabbing women from hindus, christians, etc.
Case in point the Caliphs of the Ottomans -- by the time of Suleiman the Great, they were nearly pure Slavic blood
Or the Aga Khan -- his mother and grandmother were Europeans. He is 3/4 European and looks it.